GeorgeK - 2:48 am on Jan 26, 2007 (gmt 0)

I found the email very odd, as we had in the past been encouraged by Google to switch from 300x250 to the larger 336x280 format (and it did lead to higher revenues). One would think that if they had an advertiser with a 300x250 banner ad willing to pay enough, they could serve that ad in the 336x280 spot, with appropriate surrounding white space.