Startup Idea : Group learning

Everyone wants to still learn something new, but there are always some obstacles. Imagine a platform, where people willing to learn something new, would create a group of defined goals and deadlines. Others would join and all people would learn together. (sharing links to learning materials, motivating others, discussing problems). I believe that learning in group of similarly motivated people is more effective that learning alone. A goal could be also some project where mutual cooperation plays an important role.