SiteLeads.net
http://www.siteleads.net/bm/blog/inbound-links-that-dont-contribute-to-pagerank.shtmlInbound Links that don't contribute to PageRank
Not all Inbound Links are worth something. Know which aren't.
Links marked with infamous "nofollow" attribute don’t actually add to the PageRank of the page to which they link.
According to Wikipedia: “Google implemented a new value, “nofollow”, for the rel attribute of HTML link and anchor elements, so that website builders and bloggers can make links that Google will not consider for the purposes of PageRank — they are links that no longer constitute a “vote” in the PageRank system.”
