I was just looking through my bookmarks, and I found several lists of Web 2.0 Apps — so enjoy!
- Simple Spark
- Web 2.0 (from feedraider)
- Complete List of Web 2.0 Applications
- Web 2.0 Backpack: Web Apps for Students
There also may be a few more, but either I missed them or they’re down — I’ll add more as I find them.