netmeg - 3:27 pm on Sep 18, 2008 (gmt 0)

Yea, well, I'm up every year since I started (which was the second year AdSense was in business) Not for every site - I've added new sites, and retired old sites in that time, and in some cases reduced AdSense in favor of affiliate ads, but all my *core* sites are way up.

There's no ceiling, because there's no advantage to Google in having one.