myHomework is an app that works on the majority of smart phones and is designed to help students keep track of their classes. Enter your schedule in day or block format and keep track of assignments and due dates. "If you're looking for one schedule and homework reminder service that you can recommend to all of your students regardless of which mobile operating system they use, myHomework is worth trying out" (Richard Byrne).
"Vialogues(Video+Dialogues) is an asynchronous Video discussion tool which can be used for leveraging digital videos for learning by adding group interaction as part of the online video experience."-- This was gathered by Diigo.
This is a video tool but the thing that is different about it is that there are questions that could be answered while watching the video.