Ranked in these QuestionsQuestion Ranking
Pro Active forums
Udacity has among the most active communities out of all MOOCs.
Pro Motivates by giving you real-world project
In this Udacity class you will learn how to build a working web crawler without any programming background required.
Pro Good teaching staff
Everything is explained in an easy to comprehend manner and the teaching assistants are dedicated and friendly.
There is no prior programming knowledge needed for this course.
Con Just one kind of certification
Udacity only gives out one kind of certification. It doesn't differentiate between skill.