http://sprott.physics.wisc.edu/fractals.htm
Sprott's Fractal Gallery presents a newly generated fractal GIF image every day. Users can download a large version of this daily fractal, or browse through a collection of past images. In addition, this server offers a large collection of strange attractor fractals, as well as other mathematically complex images. This site also offers DOS and UNIX programs that have been used to generate these images.