Here are a few resources Line 6 Customer Support has found to be useful to those new to making music or looking to expand their knowledge.
General http://www.google.com - Line 6 Customer Support believes that the answer to almost any question about anything can be Googled. Many times, the most useful Google results come from two places: Wikipedia (definition and background of what's in question) and YouTube (video of what's in question). Here are some musical topics to Google:
Signal Path
Gain Staging
Effects pedal arrangement
How to mix sound
Audio signal processing
How to master audio
Speaker wiring
Amplifiers Amp first-aid article: http://www.premierguitar.com/Magazine/Issue/2012/Aug/Must_Know_Amp_First_Aid.aspx
Live Sound Line 6 Knowledge Base:
Live Sound Resources (includes Audio Cables 101, Terms and Resources, and Tutorials and Articles)
Live Sound Glossary of Terms
Yamaha Sound Reinforcement Handbook: http://www.amazon.com/Sound-Reinforcement-Handbook-Gary-Davis/dp/0881889008 Sound System Engineering, Second Edition http://www.amazon.com/Sound-System-Engineering-Second-Carolyn/dp/0240803051/ref=sr_1_53?s=books&ie=UTF8&qid=1343245645&sr=1-53&keywords=sound+engineers+handbook Computer-Based Recording Professional video tutorials for Reason, Ableton, and other audio software: http://www.askvideo.com/ Other The Guitarist's Guide to Line 6 Studio Tools (http://www.amazon.com/Guitarists-Guide-Line-Studio-Tools/dp/1435460448): Written by a guitar player for guitar players, this comprehensive book is the best way to learn about the wide range of innovative hardware and software created by Line 6--and how to put it all to use in the studio.