Pros / Cons

Pros: Certificates often are offered from major universities or corporations.

Cons: The quality of course content and features available varies dramatically between courses.

Cost

$$$

Pros / Cons

Pros: Courses are very similar to those offered in colleges.

Cons: The quality of content and features offered varies dramatically between learning programs.

Cost

$$$$

Pros / Cons

Pros: A focus on microlearning with consistently high-quality content.  Consistent use of quizzes throughout all courses.

Cons: Pricing is skewed toward annual subscriptions, which is far more content (and cost) than most learners need within a year.

Cost

$$$

Pros / Cons

Pros: Labs offer a means of gaining practical experience in technical skills.

Cons: There are no incremental quizzes or ways to test learners on specific topics.

Cost

$$$$

Pros / Cons

Pros: Udemy tends to be one of the more affordable options for individuals looking to learn specific technical skills.

Cons: Highly inconsistent quality between courses.

Cost

$

Pros / Cons

Pros: Consistent, high-quality micro-content that focuses on practical exercises.

Cons: The catalog is somewhat limited compared to other vendors on this list.

Cost

$$$

Pros / Cons

Pros: Many free online classes are offered. Live online classroom experiences are offered for some of their courses.

Cons: Variable quality of courses, with some courses having relatively low quality.

Cost

$$$$$

Pros / Cons

Pros: Skillshare has a large library of courses related to creative skills.

Cons: Most courses are just a series of lectures with no interactivity, quizzing, or opportunities to practice concepts.

Cost

$$$