A Recommendation for Google's Webspam Team | TechNetSource

In fact, a good starting point might be something some top adsense keywords lists (this one was readily available). Top AdSense Keywords _. Just a sample of some of the 3400+ phrases in one file I found ... Step 6: Create a notification in Webmaster Tools saying "we've identified potentially manipulative links on pages on your site and have removed the value these links pass." Add this notification to 60-75% of the sites engaged in this activity AND write a blog post ...