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Comment Spam

Comment spam is where a spammer visits apublicly accessible site and deposits a comment with an anchor text link back to a designated site. Forums and blogs are typical target. This activity became identified as a major problem in January 2005 when Google took steps to prevent it from the blogs of The reason was that spammers working for so called PPC (Pills, Porn and Casino) web sites were trawling legitimate blogs and posting uninvited comment advertisements with their web site’s anchor text. Blogs were vulnerable because they typically possess a comment section that can be accessed without the need for passwords or even registration.
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