It appears to be an adwords slap. I know that adwords doesn’t allow casino or gambling PPC ads in the US, but I thought some of the international folk might have seen something.
Here are some links:
http://www.affilorama.com/blog/google-slap
http://www.perrymarshall.com/product-review-google-slap/
http://www.betternetworker.com/forums/viewtopic.php?f=18&t=17526