Sprixi is an awesome new search engine for finding free images to use and download. The interface is fabulous and you get a choice of open licenses, which means commercial use (usually with attribution) is fine. I love the fact that you can rate each image to help improve the results, and the easy download button is just genius. Oh and if you register you can upload your own images to add to the database. Lovely lovely lovely!
Sprixi tries to sort images by usefulness – how useful you find an image for that topic. Images are sorted automatically just by people using Sprixi. Images you click on, rate, use, download or upload are given a usefulness rating. You can also vote for the usefulness of images by clicking on the yes, maybe and no buttons. Votes from registered users are given a heavier weighting. For new topics, all images are unsorted. Over time, more useful images should work their way to the top – we hope!