These links contain some of my favorite artists, mathematicians, as well as great interactive sites. Enjoy!
All Ten: Wordle, but math!
Fact Monster: Quick on the draw; test your math fact skills!
Paper Tessellations: Here's some ideas to advance your tessellation skills
George Hart An artist who blends sculpture, unusual mediums, and non-euclidean surfaces
Dick Termes Ready for a brain shift? Six point perspective painted on a sphere
Fractal Maker Make your own fractals with a simple program
Fractal Viewer Travel through the fractal dimension (sorry not at school...YouTube)
Scott Kim Many excellent examples of transformation geometry in mind blowing art
The Forth Dimension Carl Sagan 'thinks' you through to the next dimension (you tube)
Arthur Benjamin Mental math like you've never seen it before.
Fractal Movie Awsome PBS online video that discusses fractals and their appilcation in the world
Vi Hart This woman has it all. Very fun math connected with music, art, food, and more
Pattern Designer Check out this website for making some creative patters
Mobius Transformations How do I make 3d object flat?
Donuts and Coffee Cups the Same? They are to a topologists...check this clip out