Social Media Marketing Report

Here are some niche social bookmarking sites purely focusing on shopping that all retail social marketers should know about.
Kaboodle
http://www.kaboodle.com/
(Google Page Rank: 6 / Alexa: 6045)
this next
http://www.thisnext.com/
(Google Page Rank: 6 / Alexa: 12314)
Deals Plus
http://dealspl.us/
(Google Page Rank: 6 / Alexa: 19126)
Wists
http://www.wists.com/
(Google Page Rank: 6 / Alexa: 26931)
ClipFire
http://www.clipfire.com/
(Google Page Rank: 6 / Alexa: […]

Obviously there is the sport section of Digg, but here are some niche social bookmarking sites purely focusing on Sport that you should know about.
I really believe Niche is the way to go!
Ball Hype
http://ballhype.com/
(Google Page Rank: 6 / Alexa: 25195)
Talk Soccer (for Soccer only)
http://talksoccer.net/
(Google Page Rank: 4 / Alexa: 201443)
Chaamp
http://www.chaamp.com
(Google Page Rank: 3 / Alexa: […]

Here is the list of the top 20 Social Bookmarking Sites Based on Google Page Rank as of November 2007:
1. Digg – Vote Blog Posts
http://digg.com
(Google Page Rank: 9 / Alexa: 115)
2. BlogLine – Share favorites, Subscribe & Search & Publish
http://www.bloglines.com/
(Google Page Rank: 9 / Alexa: 848)
3. StumbleUpon – Now bought by Google. […]