Are you ready to create and sell your own online course? Due to the rapid expansion of online learning as a result of social distancing, online course platforms are exploding.

By 2025, the market for e-learning and online courses will be worth $325 billion.

Are you ready to sell online courses and tap into this market?

You require the most effective online course platform.

Here's the deal: you need to choose a platform that provides your students with a personalized, professional learning experience that is so good that they don't even realize they're on one.

If you're not familiar with course platforms, they're web-based tools that enable you to do things like:

I selected and analyzed these 17+ finest e-learning course platforms in just this list, taking into account the learning environment, features, cost, simplicity of use, connectors, assistance, and more.

While reading, pay attention to the following: Here's a video with our top three online course platforms and a sneak peek at their dashboards, based on our thorough testing:

Course Platforms

Disclaimer: If you decide to purchase a premium plan after reading this article, I may gain a small commission at no cost to you. When it comes to developing online courses platforms, though, these are the tools I strongly recommend. My full affiliate disclosure may be found in my privacy policy.

What Are the Best Course Platforms for Online Courses?

My top selections for the greatest intensive classroom options to use such a year have been listed below.

Best All-Around Online Course Platform (Free or $49 per month)

A platform for Online Courses by Thinkific

Thinkific is the greatest course platform for selling online courses in general.

It is indeed my top pick because the price is comparable to the other low-cost options that it can provide an achieving target experience.

You'd never suspect they were Thinkific course platform websites because they can be altered.

The sales pages are well-designed and optimized.

The student dashboards are attractive and customizable (you can add videos, text, and any downloadable file type to the same page).

You have the option of sending your complete course platform all at once or drip-feeding it over time.

Wistia is a video hosting service that is completely free (a huge value).

That's really all you need for a course platform website that's optimized.

For example, despite the fact that subscriptions start at just $49 per month, major companies such as Fiverr use the platform to provide online course platforms.

Until their agent told them, They might never have suspected that this vast learning library was a Thinkific site:

Fiverr is a great place to start.

To get started, their best (and most popular) Pro Plan includes a one-month free trial.

First and foremost, this subscription allows you to create an unlimited number of courses. Memberships and bundles are also available, as well as advanced price choices, landing pages, certifications, and marketing tools

Here's a taste of what it's like to create a Thinkific course.

All you have to do is use their drag-and-drop editor to design and personalize your course:

Create an online course using Thinkific.

After that, you add your material and pick one of their website themes:

Examples of Innovative Web Design

Finally, you create payment methods (you may accept payments in more than 100 currencies):

Sell and Market Your Thinkific Course

There are numerous customizing options as well. If you want to create a completely unique website, their onboarding staff will work with you to make your concept a reality.

Thinkific's benefits include:

What people are saying about Thinkific is as follows:

“It's time for you to join Thinkific. The crew is innovative, dependable, and provides unrivaled assistance. They constantly make sure all of my bases are covered, which is crucial as a business owner.” 

“We've expanded our brand by showing our consumers well how to develop and to grow theirs through learning. Without Thinkific, they wouldn't have been able to do it.” Startups on Fire.

“I can't say enough good things about your customer service personnel. They are really the ideal mix of professional and personal. It's as though I have my own Something department.”

Course Platforms

Pricing that makes you think:

Unlimited courses and students, drip (planned) material, custom domain, email integrations, and coupons are included in the basic ($49/month) plan.

Basic elements plus subscriptions and packages, private seminars, certificates, sophisticated HTML & CSS coding, homework, live Zoom classes, and current products for $99 per month.

Premier ($499/month) adds 50-course admins, an onboarding package, and an infinite growth package to the Pro version (best for big teams).

Overall, I think the Thinkific platform is the best option for course developers and entrepreneurs who want to create, advertise, and sell their own course content.

With my link below, you can get started right away with a one-month free trial of their Pro Plan.

Consider using Thinkific.

Worlds to learn

Best Interactive Learning Course Creation Software ($24/month)

Review of Learnworlds

Learnworlds is a platform designed for course creators who want to interact with their students in novel ways.

Consider quizzes, gamification, and interactive films, among other things.

While the student experience isn't as attractive as that of a Thinkific course, it is distinct in that it provides students with more interactive eLearning content.

Advantages of Learnworlds:

Pricing:

Stater ($24 per month, paid annually) includes one administrator, a $5 cost per course sale, a custom domain, unlimited courses, a page builder tool, four payment gateways, coupons, and drip feed courses.

Starter features + no transaction costs, 5 admin accounts, subscriptions and memberships, custom checkout pages, live lessons via Zoom and Webex, assignments, and affiliate management with Pro Trainer ($79/month).

Learning Center ($249/month) adds a branded corporate academy, premium cloud servers, flexible invoicing, premium support, and a premium account manager to the Pro Trainer package.

With my link below, you can get a free 30-day trial of Learnworlds and start creating your interactive online community.

Take a look at Learn worlds

Kajabi 

Professionals' Best High-End Online Course Platform ($119/month)

Home page of Kajabi

Kajabi is the greatest high-end course builder for information businesses, not small course developers.

When it comes to email marketing automation, it's the finest. Pre-sale, pre-webinar, drip course, and upsell emails all benefit from automation, and Kajabi excels at it.

They have a tool called “Pipelines” that allows you to design fully automated marketing campaigns and funnels. These are lead-generating frameworks with pre-written material that is optimized for conversions.

It also comes with a variety of course site designs, the ability to sell digital products, a customizable checkout, and blogging capabilities.

Overall, it's the greatest high-end course platform, with more built-in tools and capabilities than the others on the list, although it's a little more expensive.

Advantages of Kajabi:

For a true information business, the best all-in-one software is available.

Pricing for Kajabi

The cost of Kajabi is determined primarily by the number of courses and active members you have:

Basic includes a single website, one administrator, three items, three processes, 10,000 connections, and 1,000 current users.

1 website, 10 administrators, 15 goods, 15 processes, 25,000 relationships, 10,000 new supporters ($119/month)

Pro ($319/month) includes three websites, twenty-five administrators, one hundred items, one hundred processes, 100,000 relationships, and 20,000 active members.

Kajabi's marketing automation tools are where it really shines. Users on your list can be segmented, emails can be sent at certain times depending on various triggers, and professionally branded messages can be sent.

Kajabi is a good option if you're an established company looking to test one of the more complex course platforms on the market.

Start your 14-day free trial of Kajabi right now.

Take a look at Kajabi.

Educatable

Beginners' Quality Of internal Platform ($29 – $249/month with a free month)

If you want a quick and simple course builder, Teachable is a good choice.

It's the perfect option for newbies getting their feet wet in the course industry because it's one of the lowest and easiest to use options.

You can utilize their free plan (which charges $1 + $0.10 for all transactions) or one of their three paid plans, which range from $29 to $299 per month.

I suggest their most preferred Pro Plan, which costs $99 per month and has no transaction fees.

Teachable also provided me with a one-of-a-kind, limited-time promo code (there are only 200 left):

Use the code ROSOCIATE 1 FREE at purchase to receive a free month of their Pro Plan.

Course Platforms

Pros that can be taught:

Pricing:

Basic ($29/month): 5% transaction fees, 2 administrator users, drip material, course builder, and members-only club.

Basic capabilities plus no transaction fees, 5 admin users, sophisticated reports, and program certificates for $99 per month.

Business ($249/month) adds sophisticated coding modifications, 20 admins, bulk student enrollees, and group mentoring calls to the Pro package.

To get one free subscription on your Teachable Pro Plan, use my coupon code PROSOCIATE 1 FREE at purchase.

Give Teachable a shot.

Podia

Webinars, Downloads, and Memberships ($39/month): The Best All-In-One Online Course Platform

Review by Podia

Podia is just a one-stop-shop for music copies, webinars, and subscriptions, including over 50,000 subscribers.

The following are some of the most common course types:

Their membership possibilities are simply outstanding. Connecting with membership, bundling things for specialized groups, providing tiered plans, even communicating with Facebook Groups and Slack are all ways to develop your own online community.

Podia can also be used to host current as well as on workshops.

The possibility to establish your own affiliate network within Podia is another fantastic feature. You can keep track of all of your affiliates in one location, access useful reporting, and make distributions depending on your own compensation plan.

There is 24-hour assistance, no transaction fees, and a simple three-step approach for swiftly setting up your class website.

Their card issuers levy transaction costs of 2.9 percent + 30 percent, despite the fact that they don't pay extra.

Pricing:

Mover ($39/month) – Everything is unlimited, there are no transaction costs, you can offer courses and digital downloads, and you can send 5k emails every month.

Shaker ($79/month) – Mover with the ability to create membership groups, add affiliates, and send up to 15k emails each month.

Earthquaker ($179/month) — Includes everything in Shaker plus a dedicated account manager, personalized onboarding, and a monthly email volume of 50k.

Overall, Podia is a unique and excellent course builder to try out if you're seeking solid membership features as well as the potential to enhance your revenues through affiliates.

With a free 14-day trial, you may sign up and try it out.

Podia is an excellent choice.

LearnDash

LMS for WordPress Users ($13.25/month) is a fantastic online course software.

Review for Learndash

LearnDash is a WordPress plugin that gives you all the tools you need to sell courses on your website.

Yoast, Infusionsoft, the University of Michigan, and WP Elevation are just a few of the big names who use LearnDash, a famous WordPress LMS plugin.

One of their initial features is “Focus Mode,” which eliminates all distractions while students are working through a course.

LearnDash's full-featured course creator complements their email drip campaigns nicely. On your own website, you may create a wonderful online course and connect your material with an email drip schedule to send lessons according to a program.

Their Gradebook* technology elevates learning management systems to new heights. This technology generates a weighted average for teachers to assess, giving pupils an overall grade based on quiz and homework scores.

Course points offer points for actions, while badges and awards reward students for course activities in addition to grading.

LearnDash is the greatest LMS plugin if you're a teacher searching for grading systems that rival those found in college curricula.

On their annual plans, you may get started right now with a $40 savings and 30-day money-back guarantee.

LearnDash is an excellent resource.

Ruzuku

The Ridiculously Simple Online Course Platform ($74.75/month) is a platform for creating online courses that are ridiculously simple to use.

In moments, Ruzuku's learning program, PDFs, and content help design a process online course. You could rapidly design fixed sizes, easily change and reorganize your courses, launch any course, and start making money in no time.

Ruzuku accepts payments using technologies like MailChimp as well as Infusionsoft, as well as payment processors like Mastercard and PayPal, with no transaction costs.

They're also well-known for having a desirable neighborhood. You're not just buying a teaching tool when you join Ruzuku; you're joining a team dedicated to helping your students learn.

Ruzuku, dubbed “the incredibly easy course creator,” includes the following useful features:

The Benefits of Taking a Ruzuku Online Course

Finally, on all paid subscriptions, their website allows students to enroll in an infinite number of courses.

A 14-day free trial and 30-day money-back guarantee are available to help you get started.

Ruzuku is an excellent option.

Udemy

Udemy is one of the best online course platform marketplaces with over 24 million students, 35,000 instructors, and unbelievable 80,000+ courses. The first step to creating a course is to sign up to be a premium instructor.

Start an online course on udemy

Once your account is approved, it’s effortless to get started creating your courses. When creating your video content, keep in mind the material has to be at least 30 minutes long and contain five lectures.

Another benefit to adding your course on Udemy is that you can easily promote your class inside their platform. You can use their marketing features to be included in site-wide discounts, be placed in their marketing emails, or join their affiliate program with tiered commission rates.

What does Udemy cost?

It is free to use. They charge a 3% rev share for sales through instructor coupons, 50% for students who found your course through organic search (SEO), and 75% for transactions made through paid search marketing efforts.

Course Platforms

Advantages

Disadvantages

Udemy Review: Final Verdict

First, they’re one of the most well-known, widely used, and professional online course marketplaces out there. With a robust rev share model, a vast audience to tap into, 24/7 support, and marketing offerings, you can’t go wrong with their platform.

Although there is healthy competition with other course creators and platforms, the company is likely to maintain its lead in the market.

Get started with Udemy for free today.

Try Udemy

Shaw Academy

Shaw Academy is a platform that gives its students access to professional, accredited online courses. Students sign up for Shaw Academy and get access to all of their long-form courses.

They offer courses in three distinct categories: for hobbyists, professionals, and for entrepreneurs.

For example, in their “For Professionals” category, they offer a globally-recognized Digital Marketing Course. This course includes 32 videos and takes an average of 16 weeks to complete.

Shaw Academy Digital Marketing Course

What Does Shaw Academy Cost?

Courses are offered for free for the first four weeks. You can then continue learning by paying for a monthly plan.

The cost then ranges from $49.99 to $60 per month.

Shaw Academy Pros

Shaw Academy Cons

Although they offer a lot of good courses, you may not find the right one for you depending on your industry. They also don’t have the same volume of hobby classes as course platforms like Skillshare.

Shaw Academy Review: Final Verdict.

If you’re a professional looking for flexible, accredited courses that you can start completely free for 4 weeks, this platform is a great choice.

Try Shaw Academy

Check out Skillshare.

Skillshare is a big online marketplace devoted to creative learning. Graphic design, music production, visual art, and cookery are just a few of the topics covered.

Data science, analytics, and e-commerce are among the more technical topics covered in their lectures. Skillshare has over 5million members and has paid out more than $5 million in teacher compensation.

Each class is 20-60 minutes long, with shorter courses and tasks, as well as a community discussion area where students can communicate with one another.

Students can share their efforts and receive input from others during open conversation, which is incredibly valuable for their creative subjects. At their New York studio, they can also assist premium members with production, course development, and even online course creation.

How much does Skillshare set you back?

It's completely free to make a premium course experience. Instructors are paid $10 for paid membership referrals, as well as royalties for each minute of content seen on a monthly basis.

Advantages

They have a huge number of creators and entrepreneurs among their users. Skillshare is an excellent venue to be recognized if you have content that would appeal to a creative audience.

The most popular themes are web design, email list building, photography, art, personal branding, and creative issues.

The classes are of consistent quality. They are proud of their professional and high-quality courses. They may assist you in developing a course outline based on the needs of your target audience, as well as with production.

Disadvantages

A royalty system governs earnings. A royalty pool for teachers receives between 30 and 50 percent of Skillshare's premium subscription earnings each month.

The remaining funds are used for the marketing and promotion of classes, platform support, and day-to-day operations. This royalty structure benefits established teachers because the more minutes have seen, the higher the revenue share.

New instructors, on the other hand, may find it difficult to secure enough compensation when they first begin. Furthermore, students that watch at 2x speed only contribute half of the time to the royalty pool.

Another drawback is that they only provide email help. The only way to reach them is via email, despite the fact that they provide good support articles.

Final Thoughts on Skillshare

With over 4 million students, Skillshare is an up-and-coming online course marketplace. It's an excellent option for instructors in creative professions because it has a vast user base of innovators and entrepreneurs.

Their classes are all of high quality, and they can assist you in ensuring that your session is tailored to the audience's needs for maximum impact.

However, you may be able to generate a lot more sales with a marketplace, based on the royalty scheme for earnings and the lack of live support. Their online courses are worth a shot if you're a creative course maker looking to reach a new audience.

Sign up for Skillshare and get two months of classes for free.

Check out Skillshare.

LinkedIn Learning 

Another online course marketplace geared toward business people is LinkedIn Learning (previously Lynda). They're a wonderful platform for working people wishing to keep their skills up to date, with over 1,000 business courses on topics like project management, web development, and digital marketing. LinkedIn Education

They also provide certifications that you may add to your LinkedIn page to highlight your skills and improve your online résumé.

How much does LinkedIn Learning set you back?

Monthly expenses are tied to a LinkedIn premium membership, which costs $29.99 per month or $24.00 per month if paid annually.

Get a free month of LinkedIn Learning when you sign up today.

Take a look at LinkedIn Learning

The Treehouse

Treehouse is a relatively young marketplace that promotes education democratization. “We are devoted to making education accessible to students of all colors, genders, sexual orientations, and socioeconomic backgrounds,” according to their platform.

They get over 50,000 users, 300+ expert courses in technology and design, and 27,545 mins of video.

Microsoft, IBM Watson, Amazon Alexa, and Google Developers are just a few of Treehouse's partners.

online treehouse course

How much does Treehouse set you back?

Treehouse provides a free seven-day trial. Then you have three options to pick from, ranging from $25 to $199 per month.

On-demand classes, interactive practice sessions, and membership to their online community are all included in their basic package.

Bonuses, beta features, and downloadable content are all available with the pro plan.

And their Techdegree plan gives you tailored feedback, real-time coaching, and a custom curriculum if you're trying to build a real portfolio and get job-ready skills.

Treehouse is a great place to start.

A treehouse is an excellent option.

Course Platforms

Coursera 

Coursera is a professional online course marketplace that offers virtual classes from some of the greatest organizations and universities in the world, including the University of Michigan, Duke, and Stanford.

These courses, which take roughly 4-6 weeks to complete and feature video lectures, peer-reviewed assignments, and community discussion forums, are taught by instructors from some of the world's leading universities. online courses offered by Coursera

How much does Coursera set you back?

Coursera is free to join, but you must be logged in to see individual course cost information. Coursera's class offerings are divided into three categories.

Subscriptions to the main courses range from $29 to $99 per month. These take about 4-6 weeks to complete, and you'll get an electronic course certificate when you're done.

Specialization courses range in price from $39 to $79 per month and are designed to help you master a certain career skill. With hands-on projects and more challenging training, you confront actual business difficulties in these online courses.

Online degree programs are available. You can even enroll in university-recognized online degree programs if you want a more advanced education. These take 1-3 years to finish and range in price from $15 to $25,000.

Take a look at Coursera.

ALISON and General Assembly are two more popular venues for taking courses.

What's the Best Way to Make and Sell Online Courses?

The first step in selling online courses is to think about your final goal and move backward from there. How will your students' lives be transformed and how will they be changed once they've completed your course?

You should begin your course by imagining the changes your pupils will through.

Hang out in forums relating to your topic and look at the top questions people are asking to get a sense of what your students want to learn. This is a great location to do it on Quora.

Create a clearly defined learning route that will bring your learner to a predefined objective once you've figured out how to tackle their challenges. Make their outcomes obvious at each point of the course journey.

Your students will be more interested and active with your information if you create a learning route with a clear end goal.

The top ten methods for creating and selling online courses are shown below.

Estimate the cost of creating your online course.

The cost of developing your learning platform is determined by a variety of factors, including the extent to which material is developed, research and analytics charges, and marketing. According to studies, a competent online course might cost anywhere between $5,850 and $15,600 to create.

However, considering professional video production, paying a subject matter expert (SME) to teach the course, market research, email automation or webinar software, and course promotion, that's a rather hefty estimate. Starting an Online Course: How Much Does It Cost? racoongang.com is the source for this information.

You can construct a course for about $200 if you have a good webcam, a microphone, screen sharing tools, and video editing software.

Found to be a critical opportunity to invest. Keep in mind that when you put in more work, your costs will climb. The higher the expense, the more time and attention you put into assessing your audience, conducting market research, producing an outline, and shooting excellent media with an engaging instructor.

Make use of the best software and equipment available.

Adding a webinar to a website isn't the same as creating a course. You must first create the course!

To generate high-quality content, you'll need software and equipment. Remember that a virtual course is replacing an in-classroom experience, therefore it must appear professional.

Equipment And Software For Online Software

Microphones 

Microphones are quite important. Bad audio is considerably easier to detect than shaky video, and for your course to sound great, you'll need a good microphone.

Make use of the greatest microphone you can. A USB microphone is preferable to a normal receiver, lavaliere mics, or even a headset.

The Blue Yeti is one of my favorites. Also, if you want to boost your audio quality, even more, acquire some microphone accessories. If you're recording in a tiny space, you'll need pop filters, foam balls, shock mounts, and acoustic panels.

The use of headphones

Having a good pair of noise-canceling headphones will make the editing process much easier. They're also useful for conducting interviews and recording people.

Use a screen capture application.

You'll need to show the screen to highlight the work you're doing if you're developing a class on a piece of software or computer program. When it comes to screen recording software, there are a number of alternatives, but one of my faves is Screencast-o-Matic.

Webcam with USB

For a personal classroom atmosphere, almost all online courses will require live webinars or recordings of an instructor.

From your iPhone or a webcam to professional DSLR camcorders, recording equipment can be as simple as your iPhone or a webcam. Your budget has been the most important consideration.

Software for audio and video editing

After you've finished shooting your course, editing is where the true magic happens. Apple Final Cut Pro and Adobe Premiere Pro are two of my favorite selections. Try Adobe After Effects if you want to brighten up your animations.

Accessories and lighting

To guarantee that your instructor shines, you'll need good three-point lighting (pun intended). You can get a whole studio light kit or just a few iPhone accessories.

Course Platforms

Produce useful content.

It's a no-brainer on this one. You'll need a clear picture of who your ideal pupils are and what they want to study.

Do they want to learn a new skill and obtain a certificate online? Do they want to assist in the expansion of their own company? You may establish a vision for your course by knowing your audience's pain issues.

Make engaging video courses. To engage your pupils on a deeper level, combine video with interactive worksheets, PDFs, quizzes, and other aspects. Also, try to simplify your information into fewer lines; no one loves to read large paragraphs.

Make Your Website Stand Out.

Concentrate on your niche and deliver the finest material possible, with a focus on your unique value offer (UVP). If you don't want to be the next EdX, you'll need to specialize and excel in a narrowly defined specialty.

Offer a one-of-a-kind hook statement to set your course apart from the competition right away. Consider this: What distinguishes my course from others?

If your specialization is graphic design, for example, don't name your course “Graphic Design for Beginners.” That's a little too broad. A course titled “Adobe InDesign for Ebook Publishers” is more targeted and easier to sell.

Don't put too much emphasis on too many distinct things. Your online course should have a single focus and should not stray or go off-topic. Diversify into additional topics only once you've had some early success with your courses.

Invest time in marketing your company

Your task is only beginning after you've put so much effort into building your course. You must now market it.

You'll need your own website. You'll require a sophisticated presence online to assist people to locate you and see you as an authority in your subject. Your website must feature ongoing blogging with SEO services (SEO) targeted content linked to your industry.

Create a presence on social media. Creating a Facebook Business profile for your company to interact with your followers. Twitter and Instagram are great places to post your latest news.

Maintaining a consistent posting schedule and creating compelling social media material will aid in the development of a community around your business.

Take command of your brand.

Your brand must be completely under your authority. You must be capable of defining your own prices and regulations, adding your brand, and customizing the interaction to match your brand.

If you're building your brand, you ought to be the head of the program and be able to include your character into the layout of the course.

 Provide an outstanding learning session.

The platform will provide an excellent learning environment. Text, audio, documents, and other sorts of information all included. Another option to search for the option to set quizzes and deliver achievement certifications, as well as communities and “drip” programs that sent to learners over a period.

Combine with other applications

Select a platform that works effectively with other applications. You'll want to ensure your learning program is compatible with other technologies, such as email marketing campaigns, analytics software, and etc.

Look for connectivity with major programs like Google Analytics, MailChimp, WordPress, and others. If you're starting a blog and offering courses on a WordPress site, for instance, you'll want to pick a platform that's easy to incorporate with your present site.

When you do decide to use WordPress to start an online course platforms enterprise, you can look through their theme directory for a listing of suitable plugins:

Plan your sales around your expenditure

The platform must be affordable and offer a variety of price alternatives. You must invest cash to earn money offering online courses. However, researching pricing data first gives you a better idea of your prospective return on expenditure.

Also, keep an eye out for any providers that impose a hidden processing charge on your curriculum revenues.

Many paid plans eliminate high transaction costs when developing an online course platforms and selecting an online training platform.

If you require assistance, contact customer service.

Customer service and coaching should be outstanding on the platform. Many providers include free tools and training, as well as a personalized account administrator and a supportive instructional community.

Which Online Courses Are the Best Famous?

If you intend to market online course platforms directly from your webpage or through another platform, knowing what the most successful programs are this year is critical.

It can be difficult to come up with innovative ways to engage pupils. The Online Program Reports just published a list of the top 80 most popular on-demand programs.

Many of the most famous and consistently regarded online course platforms are available in their catalog:

Students seek highly interesting and engaging education, as evidenced by this listing. To be great, you no longer need to be at the top of the list.

However, you must construct lessons that not always of great quality, but also teach your pupils about things they  interested in.

Course

Top Choices and Synopsis

Try to do your homework while choosing between the top online course platforms systems: think about the learner experiences, marketing capabilities, and cost.

The fact is that all of the greatest online course platforms systems make it simple to post your material, give student instruction, and produce course platforms revenues.

All of them have tools and functionality for creating online course platforms. Finally, you are the most important component.

Both the level of your information and your skill to promote yourself determine the profitability of your school and your way to purchase online course platforms.

A foundation is exactly what it says on the tin.

Yeah, it's a customized, entertaining, collaborative bit of media based on your experiences and ideas, but it still requires strategy, market analysis, production, and, most crucially, advertising.

My ultimate favorites are as follows:

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