Cory Doctorow:
Wil Wheaton sez, "When I was a kid, I loved cutting up magazines and newspapers to make fake ransom notes. Via Waxy, I just discovered The Web of Letters. You can enter any text you like, and using the Yahoo API and its image search capabilities the text will be recreated using random image search results. It's very cool."
Link
(Thanks, Wil!)
Update: Andreas points us to a Flickr version
