I admit I'm a bit of an Adsense newbie, but I've come here with some stupid questions in the past and received great help, so I figured I'd give it another go. I see people saying that choosing the right keywords for your ad is important, but I don't know how to apply these keywords! I run a website where I'd like to show ads not related completely to the site content; however, I know that the keywords I do want would be of even more interest to my visitors. How do I apply the keywords I want? Do I simply set the keywords meta tag accordingly? I'm not sure how to do this. Thanks!
Title, Meta keywords, description and your page content define what ad google will display on your site.
ugly said it all another important tip: if anyone tells you to stuff keywords to get relevant ads. DONT listen to them, its against TOS to cloak keywords.