Johan Falk (@Itangalo) has a new module out! Skill compass can help organize training on your website.

Some Features of Skill Compass

• Easily create sites for learning
• Break up subjects into interrelated topics
• Organize resources from around the web, and create relationships between them
• Vote relationships between topics up/down
• Get suggestions for topics to learn based on what you already know
• Browse graphical representations of "topic trees"
• "Progressive permissions" - receive new permissions when you're active on the site
• Caching (even for logged-in users)

Check out the site skillcompass.org to see the module in action. and/or
Watch Johan demonstrate skillcompass.org in a pair of screencasts.