Guys, question. I have a blog with about 30 original articles in it. I social bookmark each of article with Facebook, Linkedin, Twitter (nofollow), Digg, Stumbleupon, Mister Wong, Google Buzz, Yahoo buzz, Bebo, Delicious, My Space. The problem - I have been doing it for a year and none of my backlinks came from those sites. I look at backlinkwatch and couple other sites - I still have zero Google links, but some Yahoo and other searches (about 400 in total including no-follow links). I also have no conversion from traffic brought by specified sites (well, only one of the mentioned sites really gives me a good traffic due to their news feeds). So, why am even doing it? Or what do I do wrong? Any suggestions?