Another Adsense alternative Yahoo publisher Network

YPN called as yahoo publisher network is another google adsense alternative. It is so called biggest rival of google in advertising business. Launched around 2005-06 it has not done so well as it is for only U.S. publishers. The YPN do not accept publishers from outside U.S.
As YPN has limitted advertisers I wonder thier ads can be content related. But their cpc, cpm are very good. They pay upto $1 for a click. YPN has paypal payout option. So you can get instant payment. YPN shows ad that are targeted to U.S. traffc.
So YPN is good google adsense alternative for only publishers from U.S.
Click here for YPN