Opinion cloud?

THIS is awesome. Now, I have a place to send all the opinions I have hanging around, gathering dust!

To add to the list of ~40ish 'social' 'web 2.0' and now 'Ajax' services and apps that I've tried out in the past few months there's now Riff, which is the most fun so far.

Riff exists simply so people can share opinions about stuff - whatever they like. It also includes the usual suspects - tagging, a blogroll, integration with del.icio.us, and topic, music, and friend recommendations. Since it uses an Ajax approach, it's fast and you can move the 'mini-windows' around in your browser - which is still totally novel and fun.

I think this one's going to be around for a while...