Why reinvent the wheel here is one of the best wikis with a comprehensive list of Web 2.0 tools that can be used for teaching and learning http://cooltoolsforschools.wikispaces.com/
web2foryou is a wiki produced by our colleague Glenda Morris

23 Thingsinterested in learning about and playing around with some new Web 2.0 tools that will help you expand your information literacy toolbox
Podcasting

ISTE Launches Professional Development Site for Ed Tech at Annual Conference

International Society for Technology in EducationISTE Learning

OLMC Draft Web 2.0 Protocols