What are the advantages of social book markings in seo

What are the advantages of social book markings in seo

Social Bookmarking sites allow users to post their favorite web sites; using tags or keywords to categorize and organize, then other users or friends in their network can take these bookmarks and add them to their own collection. We can store and manage bookmarks, and then we can access these from any internet connection through out the world.  These sites are browser independent, so you can get into your account from any browser on any computer.  Social bookmarking sites allow you to share bookmarks with anyone that has an account. Most importantly it provides a way for you to tell people about your website and build one way links to your site.list of Social Book Marking Sites

 List of Social Book Marking Sites                      Page Rank

  1. http://pinterest.com/                                             8
  2. http://www.delicious.com/                                    8
  3. http://www.delicious.com/                                    8
  4. https://www.stumbleupon.com/                           7
  5. http://www.designfloat.com/                                 7
  6. http://www.bibsonomy.org/                                   7
  7. http://www.jumptags.com/                                   6
  8. http://buddymarks.com                                        5
  9. http://www.dropjack.com/                                    5
  10. http://youmob.com                                               5
  11. http://www.wildbookmarking.com                        4
  12. http://markingnews.saanj.net                              3
  13. http://www.humsurfer.com/                                  3
  14. http://www.startaid.com/                                      2
  15. http://www.digitfest.com/                                      0
  16. http://authenticlinks.com/                                      0
  17. http://groups.diigo.com                                         0
  18. http://bookmarkpromo.com/                                 0