Here's the answer: http://www.azwebcity.com/brospi12/blogster.html (Undesirable link)
A recent phenomenon on the Internet, blog spam is not only distracting and irrelevant to the topic at hand, it is also a blatant abuse of the blog owner's web space, bandwidth, and his site's reputation. Once these bad guys manage to fill the comments with enough spam, the owner's blog is reduced to a mere wisp on the Internet existence, where search engines and visitors shun alike.
Yet here we have unscrupulous vendors selling programs that automate the posting of such menaces on blogs.
I leave his mailbox to your devices.