The vector-y looking imagery in the center is from a computer-made abstract art site called Depthcore--it is a detail from a larger piece, unfortunately I'm note sure by which artist. The sphere is a detail from a Polke on the internet. The bodybuilder is my sketch of a "draw muscles" graphic someone (Guthrie?) found on Nasty Nets. The integration of bitmap and vector graphics has its origins in etc etc etc