Some of the ideas in this site remind me of a project I did a couple of years back with some gifted 7th graders in composition. Basically, they made a portfolio of their own "loop" compositions from the time they spent creating it on Acid 5 (a music loop-editing program) Sonar, and Audacity and from the chatting they did online using Blackboard (web 2.0) as a tool. If I had to do it today, I could probably work it out in large measure using wikispaces.