Flutterby™! : Balkanize Google

In the spirit of Elf Sternberg's call to "balkanize usenet" (which doesn't seem to appear on the web any more), here's a call to "balkanize Google".

We're searching for some supporting evidence for an essay for Charlene's class, and we're looking for studies on physical activity and anger management. The number of cheesey "health" sites with "work out, you'll feel better" advice, or curriculum suggesting the same, is immense. It'd be really nice to be able to teach Google that almost always when I'm searching, I'm not looking for mass-market sites, to find ways to reduce the web to that fraction which I actually care about.