I agree with Antoine. If you look at the SERPS for gambling terms they tend to be relevant on MSN. Google just produces a bunch of goo and crappy old websites. Google likes you to stand the test of time, so old websites are given preference and new ones are almost strangled before they catch their first breath of air. MSN also likes content, whereas google thinks that being Miss Popular is more important hence link exchanges that are artificial in itself.
On another note it’s not just gambling. When doing any search i usually have to sift through several pages on G before finding anything remotely useful…