I don't know if anyone has shared this trick before, but I have been using it for a while and thought I would pass it on. We are all familiar with the big business directories like merchantcircle. Well most of these type of sites scrape around the web and list most any business that they find. They put these up with an option for the owner to "Claim This Listing". Many of these unclaimed listings have been up for years gathering PR from the rest of the site. They are easy to claim and don't require any real verification. You just click the button, add your email and its yours. You can now add your own Do-follow backlinks to the listing. So the idea is to find high PR unclaimed listings. Personally I use SEOQuake a plugin for firefox that allows me to see the PR of every page in a search result. So I do a search like [ your keywords site:merchantcircle.com ] This is how I get high PR links from them. Just dont try to claim more than one on the same ip address or same email. They have a system in place to detect that. Now go get some links!