Hey guys, I saw a BST a few days ago about Web2.0 backlink posting on different web2.0 sites and that drove me to build a bot over some of them (up to this moment, Delicious and Pinterest). What I'm wondering is, is it really worth it? I am figuring that, for example, on Pinterest you can re-pin a lot of times the same thing giving new backlinks with new pin URLs with the same user, so, what would be the difference between having the same backlink on 200 accounts or in only one? Also, do these links provide help in the SERPS of the site? (I figured it would, but only to be sure). I know that can also get a good amount of traffic depending on niche, but I'm more interested on SERP rising. Thanks for any input!