links for 2007-12-12

This module makes it simple for a teacher to assign students to write on a topic and then for the writing to be read, commented on, and rated by other students.

Cyphesis is a WorldForge server suitable running small games. It is also designed by be used as an AI subsystem in a network of distributed servers. It includes a terrain engine based on the Mercator library, a persistence system based on PostgreSQL, and