Customized news feed that is more visual than text.
I cannot stand RSS feeds -- this, however, makes me crave more news. Similar to Flipboard, but less ornery on my classic Android Incredible v1.0
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.
Use this free, simple online tool to list your to do list but allows a simple method for prioritizing that list. Great for students with trouble organizing or with learning disabiliities like ADD