Not a celeb sponsor exactly but they accept celebrity traffic. Get paid $4.50 per 1000 raw impressions on an exit pop-up. That is right, RAW impressions, not unique, and there are no hidden conversion penalties or ratios. It works like this: you put their code on the main page of your site and when the surfer leaves their ad pops-up. For every 1000 of these pop-ups you get $4.50 – the surfer doesnt even need to click the ad. It is guaranteed income that adds up steadily over time, especially if you have high volume of traffic. OK pop-ups are annoying, but the surfer is leaving anyway, might as well get some use out of him! They pay 15% referral-bonus for webmasters that sign up under your referral-code at XitCash.