If you are interested I know for a fact for these four sites that they have links from PR8 sites and will get high PR in a month or two. So it pays off to post there your URL and get high PR in 2 months. Your posting is in at least 2 cases on second level which means at least PR5 if not PR6 link back to your page. They are hosted on different hostings and IPs. www.rivally.com/pligg/ www.pipublic.com/dir www.thesocialbettingsite.com/pligg/ www.stonediver.com/seo It takes few minutes to signup but you can profit at least four PR5+ back links to your pages. It?s really totally free and there is no catch. As long as you submit normal posts and don?t spam your links will stay and gain on PR. You can believe me or not but it?s a great opportunity and easy way to get higher PR. I hope this helps!