http://www.blogmarketingtactics.com/social-bookmarking/social-bookmarking-top-links.html check out that link
thanks for providing valuble info. i am only 30 + post old. but i am learning through all dp members. thanks .. raj
I find social bookmarking is great for getting a site indexed and appearing in search engine results. Whether it affects page rank any more than any other kind of link, is arguable. Google does not give away what its criteria are for awarding page rank.