You've been barred from using google, your site doesn't have the required views per day, copyright contents... If you've ever applied to some of these contextual ads programs you will know what I mean(esp d new bloggers).
First things 1st, a lot of us rush to monetize our sites when its way below standards. Ask yourself this simple question: in the professional world, the efforts I have put into my site will I pay some1 else if he does same?
Definitely NO!
Ok what's the way forward, assuming none of these schemes are working. Try getting related private companies advertise on your site. But of course you must have your statistics to show for it.