If you do a lot of searching for photos or just like better ways to search for things I think you’ll like these two plugins from Cooliris.
PicLens is an incredibly slick and easy way to search and view images. You can search Google, Yahoo, Flickr, PhotoBucket, DiviantArt and some others. What would be even nicer is if you could link it to your Accounts at these locations.
Previews is a quick way to browse without having to open up each page. Just hover over the link and you can see a fully-functional pop-up of the site. If you’re viewing images you can use this to see a slideshow of the photos.