i took about a dozen domains/subdomains from not-ranked to pagerank 4 on google in the space of one update simply by making a moneybar out of the url's with the keywords i was targeting as the link names
example is
http://naked-lesbian-porn.lesbianx3.com/
supposedly in the next update of google, relevant links will play a large factor so i am in the process of changing those sites to compensate