http://electricsheep.org/Very interesting concept. It grows based on votes / etc.
Anyone watching one of these computers may vote for their favorite animations using the keyboard. The more popular sheep live longer and reproduce according to a genetic algorithm with mutation and cross-over. Hence the flock evolves to please its global audience. You can also design your own sheep and submit them to the gene pool.
P.S: Sheep = morphing abstract art....something like the attachment