Ansiman 1.2 - Allows you to create images of the Mandelbrot Set using color ANSI escape sequences. This page is devoted to the basic understanding of the Mandelbrot and Julia sets. We also have a nice images gallery. As easy to use as the click on the mouse. Free Cloud's Fractal Land - images, history and explanations.
Documentation is also available, including easy math and bibliography.
Millefiori - generates chaotic images reminiscent of Italian paperweights.