I am currently an Adsense user doing about 115,000 page views per day and bringing in a nice revenue from it. I am already using all 3 ad units on every page, so cannot expand anymore on adsense. I am looking for another company to fill 3 more ad spaces. I have recently tried Chitika, however, the ads they display are horrible and make the site look cheap. I have tried getting into MS, however, it appears they are not accepting any more apps. Yahoo appears to be extinct. Are there other alternatives out there that I should be looking into? I would prefer something simular to Adsense in that they display nice and somewhat relevant ads. Thanks for any insight on this.