Page is a not externally linkable
-- Google AdSense
---- AdSense Updates 3 Ad Layouts
jomaxx - 5:31 am on Aug 15, 2010 (gmt 0)Thread source:: http://www.webmasterworld.com/google_adsense/4184370.htm
CTR is up for me too (quite a bit), but I agree it's probably due to ad blindness and is likely to decline over time.
Brought to you by WebmasterWorld: http://www.webmasterworld.com