New AdSense for Search Designs
Another AdSense improvement from Google is new AdSense for Search designs.
With several new formats available for the AdSense for search box, you can integrate AdSense for search into your site even better. Visit the ‘Search code’ page, under the AdSense for search tab, to view the new designs and see which is the best fit for your site.
If I remember correctly, the differences I can see is that the Google Logo is optional, you can specify the background color, and the length of the search box can be modified. (It’s been a while since I looked at the Search code page, so correct me if I am wrong). These are good changes for blending the search boxes into you site better. I like these changes.