Trick is pretty simple. Search for expired domain related to your keywords at http://www.expireddomains.net/ From the list of domains, search them at http://archive.org (Waybackmachine it stores the snapshot of pages) and grab the content if available. You wont get archive for all domains.The success ratio hovers around 30%.Double check with copyscape before using because many site have already been ripped. Am using Senuke Xcr macro to automate the whole process.I manage to get around 30-40 posts/200 domains analysed. How i use them: 1) For my Blog network.Way better then spun content. 2) For web 2.0 Am using few of the posts on my websites as well but those are high quality sales page which you can not miss. Little twist:Search for clickbank related products you would hit a jackpot.