Need to advertise your site? Well, Google Adwords is just one of the ways. You will need to know what you are doing, though, otherwise it's going to cost you. Go to adwords.google.com and go through their "program details and FAQ". Make sure you also research the keywords that you plan on using. Keep in mind, Google is the biggest so the keywords are going to be expensive. If you are looking for other places to advertise that may not be as costly, you can also try miva or overture (aka yahoo).
Good luck. Let me know how you make out.