Good idea, and good point about feeling useful helping with depression. That's actually part of the problem with Facebook, because most of the groups I'm involved with are fat-acceptance groups, and I feel like I can help people, but I also get depressed about why they need so much help (i.e. societal fail).

Analog synthesizers...I just downloaded a million different virtual ones for my music production coursera course. Why do they make the interfaces so confusing?