I'm still an ultra-newbie to this kind of thing, but I have to agree with TheRealRazzy - just do your due diligence here on the BHW forums and you'll learn all about it. One thing people on this forum don't seem to appreciate is people asking to be spoon-fed the answers to their problems!
Sorry I can't help, but it will do you more good in the long run to read about it yourself. Just click on the SEO forums and get to work.