ThougfulConsideration has a good introduction to Domain Investing – if you are new to this space, it seems to be like a good way to learn about it:

• Investing In Domains – One Noob’s Experience (Part 1)
• Investing In Domains – One Noob’s Experience (Part 2)

When you look at the domain examples in part one, be careful though. Anyone who registers names containing trademarks or similar to trademarks runs a risk of running into legal problems at one point or another.

[via ThoughtFulconsideration.com]