NEO LMS is the BEST Learning Management System. I have never seen anything like NEO before.
schoology - An online learning, classroom management & social networking platform that provides educators & students w/ more effective, efficient & engaging ways to learn.
Pluralsight - Pluralsight is a learning management system (LMS) that helps aspiring tech professionals learn the basics of the trade and lets established professionals expand their skill sets.
Edmodo - Where Learning Happens
PurelyFunctional.tv - Online Clojure training courses with a subscription model.
Canvas by Instructure - The Canvas LMS is the world's fastest growing learning management system. Check out favorite features and schedule a live demo!
TutsPlus - Learn Creative Skills, Shape Your Future