This is probably the best list I can give away about showing you how I get traffic to my website using web 2.0 sites. Bookmark this site so you have it and can use it when trying to improve search engine rank on your website.

How I Get Traffic To My Website Using Web 2.0 Sites

1. 

   Squidoo

2. Hub Pages
3. Google Docs
4. Wordpress.com
5. Google Knol
6. Propeller
7. Ezine Articles
8. Kaboodle
9. PB Wiki

There are more but this should get you started… remember you are looking to get authority links first, then work on getting other links. This way you can play in the Google search engine.