When you are searching for images with Microsoft's live search, they have a cool feature that allows you to keep track of the images you like as you scan your search results. When you are on Live's image search result, there is a link called "Scratchpad" on the right side of the screen above the "refine by" text.



Click on "Scratchpad" and you get an open area on the right side of the screen. You can then click on any image in your search results and drag it to the scratchpad. You can put as many images in their as you want as you browse your search results. That way you don't have to go between pages to find the images you liked. The only caveat to this is that it only works in Internet Explorer, they seem to intentionally exclude other browsers from working (they are microsoft after all).