Right now there is nothing mentioned about a limit to the number of ads you can show on one page, however I'd limit it to 3, because any more will make your website look like a sp@m site.
Plus, 3 is the limit for Google Adsense, so Yahoo is likely to use at least this number.
6:20 pm on Dec 12, 2005 (gmt 0)
Inactive Member Account Expired
I've got 6 right now. I used to have 3 adsense ad's scattered between blog posts and 3 YPN ads on the sidebar. Since reading this forum, I learned that adsense and YPN can't be on the same page so I switched adsense over to YPN. I can't find a suitable alternative to adsense or YPN in revenue. Any ideas? I tried Adbrite, Kanoodle but nothing comes close to either adsense or YPN.