Advice
If you are a starting out website, and you can't get adsense (in my opinion the best contextual advertiser), your best choice is Adbrite.
I would focus then on driving traffic for awhile until you get a good visitor rate daily. At that point you can re-try adsense since you'd have traffic driven to your site daily, and you have a slew of other good advertisers you can choose from such as burst media, casale media, value click, etc
Hope that helped you some! :biggrin2: