Very interesting read.
<<Blogs and other social media tools have changed the publishing landscape over the past few years, making it easier than ever to share information with the world. The ease of use and focused attention of the medium has also helped create new opportunities for spammers to automatically generate content, buy links, and get noticed by search engines and other points of aggregation.>>
http://www.niallkennedy.com/blog/archives/2006/11/spam-farms-social-web.html
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