An amazing yet simple site for group project management. Share the responsibilities, categorize and make notes, to do's and vote on good ideas. Organize and assign tasks including uploading documents and linking to videos.
This is a site that hosts video (Up to 5GB for a free teacher account) but lets you decide who can see it and who can add to it. It's a better managed Youtube alternative.
Think of this as an educational Pinterest. You can create a "learning board" where you collect almost ANYTHING from the web you'd like on a topic. People can browse through your boards (or you on theirs) and see embedded video, google docs, forms, other boards. Combines with LOTS of services, Edmodo, Quizlet, Prezi. You can like, comment, share, and track your progress.