Anyone who's curious about it, can find a bit more about the free virus offer. I had planned to post it, but the 'cat was down for a few hours when I came across it.

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There's more, but I'll omit other details, except for the researcher's comment:

"Stevens says that he designed his ad to make it look fishy, but he had no problem getting Google to accept it and has had no complaints to date. And, although a healthy amount of people clicked on it, he said there's "no way to know what motivated them to click on my ad. I did not submit them to an IQ-test."

John