Here are some links to other Mandelbrot Sites of interest:

ChaosPro 3.2
ChaosPro 3.2 was the fractal program used to generate the source images for The Amazing Mandelbrot Set. Among fractal applications, ChaosPro is noteworthy for many of its features--including its ability to manipulate color palettes; its filter sets; and its animation-rendering capability. And it's free!

"Mandelbrot Set" by Jonathan Coulton
This is perhaps the BEST rock song ever written about the Mandelbrot Set. It's poetic, educational, and hilariously funny! And it really does rock. I should mention that there is one "R-rated" word in the lyrics, so don't say I didn't warn you.

Here's some esoterica
Some of this is whimsical, and the so-called "Mandelbrot Monk" almost has to be a hoax. Nevertheless, it's a brief and fascinating collection of ideas worth exploring.

A Statistical Investigation of the Area of the Mandelbrot Set
This is a very well-written article, and is of special interest to anyone who often wonders, "How do they figure out stuff like that?"

Mandelbrot Set Chaos
Julien Sprott's technical notes, which includes a rarely seen image of different bounded periodic regions of the Mandelbrot Set mapped in color.