banner ads for website

Hello there I am running an online classified website and I need someone to sell advertising space for me on my site, my website has around 150 to 200K visitors per month and still growing I pay bonus of $200 dollars and commission, you get 30 percent when you sell an ad and then 10 percent on monthly basis from the same ad so lets say if you sell an ad for 100 dollars, right away you get 30 dollars and then 10 dollars per month from that ad if sell few ads you can make good money from this, and the good thing is you make money every month drop me a line if you are interested