Two New Google AdSense Ad Formats
Google has added two new ad sizes for AdSense: the Square (250250) and Large Rectangle (336280).
Clearly, Google gets that the Medium Rectangle (300250) is the most popular ad size, and is trying to add more, similar options for publishers. I’m going to test them out, and try to see which one is best, so be prepared to see the ad below the post shrink and enlarge slightly over the next week or two.
Square (250 x 250)
Large Rectangle (336280)
Philipp’s got some more, including that these formats are also image ad formats, and that AdSense For Search now has a “Flavor search results to my site” option.
Visit the InsideGoogle blog.