This is cool: AT&T Labs has put up a free online demo of its Natural Voices Text-to-Speech Engine. Type in whatever you want into the text box, and it’ll read it out in an eerily realistic human voice. You can even pick male or female voices and a few different languages or accents.

Warning: This site is seriously addictive. I’ve got friends who have spent hours and hours getting the prim-and-proper British female voice to say some just nasty things.