Terry Freedman has released a free ebook on Web 2.0 projects. The book of a compilation of interesting classroom activities using Web 2.0 technologies submitted by several dozen contributors. It’s pretty light and breezy, but the information is well-structured (using a template that identifies things like age ranges, applications used, reactions and outcomes) and the content is clearly and well written throughout.
DawsonITE is a blog devoted to Educational Technology. It's compiled by Rafael Scapin, Coordinator of Educational Technology at Dawson College in Montreal (Canada).