I am hearing reports from Search Engine Watch Forums that Google is now testing text ad formats for ads on Google Image search.
You can see two screen captures of this in action, one at AccuraCast.com and the other at Michael Gray's blog.
In the most recent ads on Google image search we saw image or banner ads on image search. Now it appears Google is going back to the more textual based ad format.
Forum discussion at Search Engine Watch Forums.
