Today’s 2 minute guitar tip shows you a simple octave trick to find any note on the entire fretboard.
Fundamental Changes makes some of my favorite guitar books on the planet. They're always informative, chock full of cool riffs, and have great teachers doing the writing.
In addition to their books, they also have a great website full of lessons. If you don't know how to read music, you should check out this post which is very helpful in getting started.