Perhaps connected to the Adsense move to vary the number of text ads in an ad unit is this new centered design of Adsense ad that I spotted today on my blog. It’s in a 468 x 60 ad block and is actually quite striking on the page.
Update – I just saw the following ad on another of my sites – it’s the same ad but MASSIVE! I’m not sure I like it – it tends to dominate the page quite a bit. What do you think?