Well if you have your prime rib site as a website with content on it, then I would strongly suggest content ads, and search ads. From my experience the content ads are the best and most rewarding. The domain ads are only if you have a domain name with no content and you can place google ads on the domain name. But if you have content on your prime rib website then you cannot do domain ads, only content and search. Also I would recommend having your ads up near the top and on the left, even though the right side is ok too. Hope I have helped.