Compfight

From the Read and Write Website

Compfight is a Flickr image search tool. It allows users to easily find a host of images on Flickr. You can toggle your search phrase between tags only and the entire text. You can also restrict search results to Creative Common licenses, even for commercial images. Compfight is a perfect tool for bloggers to utilize to find images for their posts.

Flickr 100 Tools

100+ ways to get even more out of the popular photo site.

WP Clipart

WPClipart is a collection of high-quality public domain images specifically tailored for use in word processors and optimized for printing on home/small office inkjet printers. There are thousands of color graphic clips as well as illustrations, photographs and black and white line art.