Acoustic Guitar String Basics by
Striking the Right Chord: A Guide to Choosing the Perfect Guitar Strings - GuitarGaGa
Electric Guitar String Buying Guide
The Best Guitar Strings — Your Buyer's Guide, by Fabrício Schiavo, Magroove Blog
The Structure of the Acoustic Guitar:The rule of strings and pitch - Musical Instrument Guide - Yamaha Corporation
How to Choose the Best Acoustic Guitar Strings
How to Choose a String Gauge for Your Acoustic Guitar
How to Change the Strings of Your Acoustic Guitar
Acoustic Guitar Strings For Beginners