Here’s a list of 20 social networks that use do follow meaning that google will follow the links and maybe if your story is hot you will also get some free traffic and other backlinks.

This is a simple seo method that can increase your rankings in search engines.

1. Digg
2. StumbleUpon
3. Reddit
4. Mixx
5. PlugIM
6. Blogmarks
7. Connotea
8. Mister Wrong
9. NewsVine
10. Technorati
11. Bibsonomy
12. Myweb Yahoo
13. Rawsugar
14. Dzone
15. Spotback
16. Bumpzee
17. Searchles
18. Showtwire
19. MylinkVault
20. Mename

If you know more social sites that do follow please share with us.