Retrievr: Find Flickr photos by sketching
Though not supremely
useful, Retrievr is undeniably cool. It's a web app that lets you draw
a little sketch and then finds images on Flickr that match, to some degree or another, your sketch. The results are very
fuzzy--drawing a red apple is just as likely to return photos of a cherry or a red Christmas tree ornament--but it's
guaranteed to find you interesting pictures that, if you squint your eyes just so, are exactly what you're looking for.
