Context Free Art
E-mail us at contextfree(at)glyphic(dot)com (Yes, you'll have to fix that address before you send the e-mail.)
Mark Lentczner saw Chris' site and decided he had to have an interactive version. He is responsible for the Macintosh version.
John Horigan got sucked into this project and it immediately ate all of his spare time. He wrote the Windows version. Mark and John jointly maintain the common code base and the Posix/Unix version.
Electronic Frontier Foundation for fighting the good fight
GNU Project for inspiring us to make free software
Anti-Grain Geometry by Maxim Shemanarev is the beautiful, high fidelity 2D graphics library used in Context Free