Are allowed? On my blog I want things set up that every blog entry has its individual set of ads as well. Like here http://mikedammann.blogspot.com/2005/09/hurricane-katrina-pictures-of-storm.html where the "Blog Stuff:" section is underneath the entry itself. That would make it 3 adsense ads per page. Is that allowed?
3 ad units are allowed btw. According to the tos 1 page may have up to 3 ad units, 2 search boxes and 1 link unit.
On my sites I tryed 3 ad units did not see a jump in eCPM, now I have gone back to just 1 ADSense unit. Still it is good to change things around and see what works best for your sites.