The random image API. The little project was used to test a feature I worked on for Gmail. The idea is to return and cache a wide array of big, beautiful images from a variety of sources from just a URL. Currently the service interfaces with Picasa, Panormaio and Flickr to retrieve wallpaper friendly images at random and offers a means of ranking them to help more popular images surface more frequently.

http://feeling-luckier.appspot.com/