The Deep Rhythm Project (DRP) reveals the rhythm of our digital lives by translating vectors of computer usage (eg mouse clicks, cpu access, memory access, internet access) into a global beat that can then be remixed and broadcast.
opensource Mayan Calendar, developed and maintain by Mayans
Statistics modules in Perl Data Language, with a quick-start guide for non-PDL people. They make the PDL shell work like R, but with PDL threading (fast automatic iteration) of procedures including t-test, linear regression, and k-means clustering.
THOTH SEEEN ALIVE A STUDY of the Character of THOTH, Egyptian god. Extraordinary amounts of mathematical interplay. Lots of pictures to see, already developed. It's worth a Look, I believe.