Rodney - 12:00 am on Oct 8, 2005 (gmt 0)

I am a heavy advertiser for yahoo and trust me, there is inventory. The site I had up in particular was about college and education. There was several section about scholarships and such. Almost every general term has at least 40 advertisers.

I get the feeling that not all the advertisers are included in the YPN Beta, which is why you might see more adverts on Yahoo that never appear on your site.