Sloodle - Learning Systems for Virtual Environments
Sloodle is an Open Source project which integrates the SecondLife® multi-user virtual environment and the Moodle learning-management system. Sloodle provides a range of tools for supporting learning and teaching to the immersive virtual world; tools which are fully integrated with a tried and tested web-based learning management system used by thousands.
Sloodle on Second Life
SecondLife Education Wiki
For those who want to add dimension to their learning environments.