Jenstar - 9:42 pm on Aug 5, 2005 (gmt 0)

I think the change you are thinking of was in regards to multiple publisher IDs on the same site.

Yes, you can run them both on the same site, so long as they don't appear on the same page during the same page view. I plan to put an ad rotation script on my blog and do a 50/50 rotation between AdSense & YPN to get some good comparison data.