Here's a growing list of simple instructions on how to do various guitar-related tasks.

Instructional:

How to add vibrato
The basics on how to perform, and use vibrato in your guitar playing. Essential if you want to be a lead guitarist.

How to bend strings
This quick tutorial documents the basics of executing a string bend on your guitar. Geared towards beginners.

How to change strings on a Floyd Rose bridge
Are you having problems changing strings on a guitar with a Floyd Rose installed? This page will explain the best way to go about doing it.

How to increase finger dexterity
Looking to gain some speed? Here's a great finger exercise that's really tough!

How to play barre chords
If you're scared to play barre chords, or don't know what they are, this quick lesson will give you the basics in just a couple of minutes.

How to re-string a 12-string guitar
Quickly master this somewhat tricky process.

How to use a pick
This page documents the generally-accepted "right" way of holding and using a pick.

Humorous:

How to play fake lead guitar
Do you want to be a rock star, but can't play guitar? Don't worry, here's what you have to do.