Why not skip ahead to Google Casino?
Google is supposed to begin testing gambling ads in the UK today. I've come up snake eyes trying to get one onscreen, so I'd love a screenshot if you get one. Free-market champion Henry Blodget beat me to the summary:
Google didn't accept them before—presumably because someone at the company viewed the practice a moral or ethical compromise. Now that the stock's at $350 and UK revenue growth has slowed to 17%, however... Well, life's all about compromise.