For a site with 25K~35K visits and 50K~70K pageviews each month, what should be my asking price for 125x125 ads? What about 250x250 ads? I'm using Project Wonderful, but earnings is low. If I increase the min bid not many advertisers are willing to place bids. How is adtoll in comparison to PW? Does it have enough advertisers?
Autopricing FAQ: http://www.adtoll.com/publishers.php#ap_1 A 125x125 is a must on your right hand side, possibly pictext as well. And consider a 468x60 between blog entries.