Hey there i have a website which is around 3 days old and its showing only public service ads may be becasue of domain name or keywords? http://ipee.us Please post your comments Thanks. F--K
Probably because you don't have enough content at the moment. Therefore Google doesn't know what ads to display on your site.
Add some content to it.. If you can not, try using section targeting the meta keyword and description. The trick mentioned here. One of my low content site is doing really well applying that.
Google adsense show only the Ads which are realted to your content.Add some more content to your site and watch for few days.