Udacity is a major player in the MOOC universe that was founded by Sebastian Thrun. It partners with universities to offer online courses for free, though some courses offer a for-credit pathway for a fee. Udacity courses are highly interactive with videos, activities, and quizzes, and can be taken at one's own pace without deadlines. To get the most from Udacity courses, students should actively engage with the lessons, exercises, and other students through forums or meetups.