Yahoo announced they have enhanced their image previews. Virtually all search engines show you a preview of the image in a framed page set, when you click from the search results on a specific image. Yahoo has taken this one step forward by enhancing that preview page.
The enhancements include a search box, additional image results from your previous search and then additional search suggestions. Here is a picture of a search for sunny doodles, one of my favorite treats:
Google does something similar, in that they show a preview with a search box, but Google does not show additional images, nor search suggestions in the frame window. Live Search handles it slightly differently, by showing other images on the left hand side and the search box at the top, while displaying the image source in the middle right frame.