Lambda the Ultimate is a community site for programming languages. The name comes from The Original 'Lambda Papers' by Guy Steele and Gerald Sussman. Yep, that Guy Steele, co-creator of Scheme, then Java, now working on Fortress. Fortress is intended to be a disruptive technology (like Java was), and is squarely aiming at markets that are currently served by Fortran and Matlab.

Anyways, LtU, as it is known to its users, is all about programming languages. Go on over, and discover some programming languages which are to Java what Maple is to Matlab.