I love being able to organize by tags favorite and frequently visited sites in one place. This will make it easier/quicker to access in the future.
I joined Diigo and found these 2 new sites:
1. National Center on Response to Intervention (http://www.rti4.success.org/)
2. PreK - K (www.pre-kpages.com) (Note: the technology tab on the left has ideas for using flip cameras, ipods, Elmos, etc in PK)