me too waiting for a clone of udemy and i am a member of agriya … i have seen all of their demos and bought one other product , they are very professional and the code is stable and they keep asking your feedback for updates and bugs , they has rating system and idea incubation as well so that if an idea has got enough votes , they develop it and you will get it for much discount than its full price , its like crowdsourcing , just join their store and see … if anyone found a cheaper and effective solution , please buzz me…