Diigo
Key Features:
- tag websites
- highlight specific sections
- create notes attached to pages
- group websites by topics

Some examples of Diigo Groups:
NECC 09 Twitter Tips and Tools

Diigo V4: Research ~ annotate, archive, organize from diigobuzz on Vimeo.




Delicious
  • How to use Delicious--Great video tutorial!

http://www.teachertrainingvideos.com/delicious/index.html

  • Using De.licio.us in Education
Using del.icio.us In Education


Discovery Network Diigo Page

Steve Dembo from Discovery Channel Delicious Page

GCPS Delicious Page


Video on Social Bookmarking: