High PR Social Bookmarking Sites

Hi guys,

             These are the some high PR social bookmarking sites which I am using since last 2 month and I found that these are really effective to improve traffic as well as ranking in all search engines. So I am sharing these to all of you, Hope this will helpful for you. CHECK IT OUT.

 1. http://stumbleupon.com

 2. http://digg.com/

 3. http://www.reddit.com/

 4. http://slashdot.org/

 5. http://www.a1-webmarks.com/

 6. http://multiply.com/

 7. http://delicious.com/

 8. http://technorati.com/

 9. http://www.kwoff.com/

10. http://www.mylinkvault.com/

11. http://www.hugg.com/

12. http://www.wirefan.com/

13. http://bookmarks.vertumate.com/

14. http://www.folkd.com/

15. http://www.diigo.com/

16. http://www.dzone.com/links/index.html

17. http://dotnetkicks.com/default.aspx

18. http://twicsy.com/

19. https://www.tumblr.com/

20. http://newsvine.com

21.  http://bookmarks.zsinfotech.com/

22. http://blogmarks.net/

23. http://www.oyax.com/

24. http://tagza.com/

25. http://www.bebeame.net/