Need to make an artist statement but not feeling artisty enough? Use the Arty Bollocks Generator to generate one instantly.
Cinematic particles is an online applet that draws watercolor-like visualizations of movie dialogs, from Apocalypse Now to Zabriskie Point. See also: Spinal Rhythms, L-Garden, SpyCamp and other online toys by Austrian artist Eva Schindling.
The Ad Generator is a generative artwork that explores how advertising uses and manipulates language. What it actually does is that it randomizes words and structures from real advertising slogans and pairs them with related images from Flickr, generating fake ads on the fly.
Ton Mondrian Is Even Worse Than Mon Mondrian: Use the machine to see how you square up to the Master. [Shockwave required; first link via Bifurcated Rivets.]