Adbrite has been around for a while now, developed by Pud who is a serial entrepreneur. It came about as an alternative to Google Adsense, but very different in that a price is given for a set period of time and for a set price. There’s no ppc (pay per click), which is favoured by Adsense and it’s copycats. The point of Adbrite is to get as many clicks possible to your advert in the alotted time.