Created by Michael Frame, Benoit Mandelbrot, and Nial Neger of Yale University, these Web pages serve as a remarkably comprehensive source of information on fractal geometry. The site offers basic definitions, many illustrations, and lots of mathematical details. Topics include natural fractals and dimensions, iterated function systems, the complex Newton’s method, fractals in art and literature (take a look at Salvador Dali’s fractal painting), cellular automata, genetic algorithms, brownian motion, and much more.