deadsea - 4:22 pm on Feb 18, 2011 (gmt 0)
When targeting google image search, keep in mind that image traffic tends not to interact with your site and does not usually meet conversion goals. This is especially true with recent UI changes in image search. Google is showing such a large number of results in a gallery, even if you are very well ranked, you get a low click through rate. When folks do click through to you, Google inserts an overlay with the full sized image over your site. Many (most?) users don't close the overlay to get to the page. Even those that do get to the page, seldom visit other pages.