Looks like Yahoo is doing some Google-like experimenting of their own and trying out a new background color for their search ads. Spotted originally by @tecnonetblog – Yahoo seems to be testing a green background color for their ads. Now with the original screenshots that were provided it was rather hard to see the difference, unless you’re sitting behind a 27″ iMac, or have your display configured perfectly. Regardless I took the images and changed their contrast and brightness a bit so you can more clearly see the differences:
