More to explore:
5 Photography Tips for Beginners
3 Reasons to Control your Flash and 10 ways to do It
why and how to use an external flash
Getting to Know Your Flash
External Flash Photography
External flash cheat sheet
Flash Photography Tips & Tricks for Beginners
Off Flash Tutorial
Custom USB flash drives.
cute, cute, cute!
The Basics of Photography: F for Flash
All the tiny parts you never want to forget :)