I found this site being promoted on a blog on January 4, 2008:

C & C Articles

So how can they sell articles so cheaply? Easy! They use "spinning" software like TBS (The Best Spinner) to make many versions of the same article, then sell each version as an original, as it really IS an original!

Spinning articles is one of the things that any aspiring writer needs to know about!

You can find out more about TBS here: The Best Spinner