Sweet Search is a search engine that searches only the sites that have been reviewed and approved by a team of librarians, teachers, and research experts. In all there are 35,000 websites that have been reviewed and approved by Sweet Search.
http://www.sweetsearch.com/
DawsonITE is a blog devoted to Educational Technology. It's compiled by Rafael Scapin, Coordinator of Educational Technology at Dawson College in Montreal (Canada).