Lockpicking 101

There are a number of interesting lockpicking sites on the Internet. I think one of the the best ways to protect yourself in matters of home security is by understanding the vulnerabilities of doors and windows, including the locking mechanisms. If you want to know which locks are the most difficult to pick (and the best ones to install for that reason) or you're just curious about lockpicking basics, here are a few resources for you:

Lock Picking (Nice pictures, plus a forum where you can ask questions)
How Lock Picking Works How Stuff Works always does a thorough job with their articles, and this is no exception.
Lock Picking 101 An active forum on the subject.
Lockpicking Basics A manual that starts at the beginning and provides diagrams.