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:
Spectacle Light and Sound Kit Hookup Guide
All the information you need to use the Spectacle Light and Sound Kit in one place.
Getting Started with MicroPython and the SparkFun Inventor's Kit for micro:bit
Learn MicroPython with the micro:bit.
Analog MEMS Microphone Breakout - SPH8878LR5H-1 Hookup Guide
Get started with sound monitoring using the SparkFun analog MEMS microphone breakout board with Arduino!
AzureWave Thing Plus (AW-CU488) Hookup Guide
The SparkFun AzureWave Thing Plus is a Feather form-factor development board equipped with the AW-CU488. We'll highlight key features of the board and show you to get started with the development board. A few Arduino examples will be highlighted to connect to a WiFi router, calculate the Fast Fourier Transform (FFT) from an input microphone, output an analog signal to a speaker, and connect an Qwiic-enabled device.
Or check out this blog post for inspiration: