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:
Little Soundie Audio Player Hookup Guide
Add sound effects to your project, prop or costume with Little Soundie Audio Player.
Spectacle Example: Super Mario Bros. Diorama
A study in building an animated diorama (with sound!) using Spectacle electronics.
Spectrum Shield Hookup Guide (v2)
Want your project to react to music? Then the SparkFun Spectrum Shield is the product for you! Get going in no time with this Hookup Guide.
The 970-HA-JOKES Payphone Project
A payphone turned into a bit of fun.
Or check out this blog post for inspiration: