Is it illegal to discuss your CPM from AdSense? I'm curious to see where I'm at as far as other website's CPM....

its not illegal lol
its just against google Terms and conditions

hehehe.... well hrmmmm. How about CTR? LOL Also, anyone here... has putting p two Google banners rather than 1 per page improved your click performance at all? I'm debating on doing this...

you can have up to 3 ad unit on one page (as far as i know)

i think its same for CTR