Whoa buddy you are way off.
Web 2.0 profile forum links? Is there such thing? You must be mistaking for Anglea / Paul links on websites that are more than just a forum.
Maybe you should look into those links. Because those links have to be done manually considering they are very high priced. ( like 20$ for 100 ) but since they are not forums but more well developed pages, they are valued more.