Electret Mic Breakout Board Hookup Guide
Contributors:
LightningHawk
LightningHawk 
Resources and Going Further
A quick Google search for "Electret Mic Breakout" will get you going for any type of project you may want to create. Here are a few of my favorites from Instructables.
If you need to add sound to your next project but need something a little more sensitive, robust or a little more useful, I recommend the SparkFun Sound Detector.
Documents
For more audio fun, check out these other great SparkFun tutorials:
Touch Potentiometer Hookup Guide
Learn how to use the SparkFun Touch Potentiometer to control lighting, volume or other inputs in your daily life.
Wireless Audio Bluetooth Adapter w/ BC127
Build a custom wireless audio Bluetooth adapter using BlueCreation's BC127 and add it to your old speaker system!
Clap On Lamp
Modify a simple desk lamp to respond to a double clap (or other sharp noise) using parts from the SparkFun Inventor's Kit v4.0.
MicroMod Artemis Processor Board Hookup Guide
Get started with the Artemis MicroMod Processor Board in this tutorial!
Or check out this blog post for inspiration: