Compfight.com is a powerful new photo search engine that works with the Flickr API.
You can use Compfight for personal or commercial purposes, and perform various types of searches, making it a very flexible tool useful to a wide range of users. The basic search is a keyword search that will look through Flickr tags and return up to hundreds of photos tagged with your keyword. If your results are weak, you can change to an ‘all text’ search that will also hunt through photo titles and descriptions to find your keyword. Click on any thumbnail result and you’ll be brought to the photo’s original page on Flickr. A ‘Blue Bar’ underlining a photo thumbnail on the results page indicates that Flickr is holding an original of that photo, and by hovering your cursor over a bar, you can even see the pixel dimensions of the original. You can turn on the Creative Commons feature to find licensable photos, or Safe Search to keep your results free of possibly offensive content.
Compfight.com In Their Own Words
Compfight is not affiliated with flickr™ but makes good use of the flickr™ API.
Why Compfight.com It Might Be A Killer
The Flickr search engine seems to provide lots of results based on a tag search, but if you don’t get the desired results that way, you have the useful option of doing a deeper search through titles and descriptions too. The blue bars and safe search options further allow you to find what you’re looking for, or keep your kids from finding what you wouldn’t want them to see.
Some Questions About Compfight.com
Are there any aesthetic improvements in the works for this site? Will visitors be turned off by the fact that Compfight’s homepage is text-only and more than 50% white space? For a site dealing with photos, it seems odd to have such a boring, picture-free homepage. 
