"Moodle is very easy to navigate. Each new course is set up with a default course front page as shown here, to which you (as the instructor) can make changes. This course front page is what you and your learners will come to every time you log into the Moodle course. Familiarize yourself with it, and explain all features to your learners."
Sloodle is an Open Source project ....which integrates the Second Life® multi-user virtual environment and the Moodle learning-management system. ... more details on the Sloodle Wiki ... source code is available on Google Code, along with the issues tracker.