I'm a rank newbie when it comes to SEO. I've set aside a little money to play with to try to figure it all out before doing it for real. I've picked a keyword that I want to rank & have read a few of the guides. I read about buying domain names that contain some variation of your keyword. What exactly should you do with those domain names after you buy them? 301 them to your money site? Set up a blog that links to your money site? I'm a little stuck on this concept.