Hello,
I was practicing today and a friend of mine told me: you know that the E minor Penta you're playing you can use it as a G major penta and do this and that?
"hummm... no..."
I really feel I am really bad at theory as I am a self taught guitar player (and I thought that I could be a guitar god by just staring at the instrument when i was a teenager

).
I used to learn licks, chords and a couple of scales and I feel I am very limitated in my approach of the instrument now.
So I am starting from 0 by re-learning the notes on my fretboard instead of just playing chords and scales... I also just ordered
Doug Doppler's dvd. from what i heard it's a good dvd to start with.
but: do you guys know a good website that explains the basics of scales, modes, chords progression? how do scales relate to each other? (for instance: the E minor penta = G major penta etcetc)
Maybe we could list a few with a rating for people who 'd like to start learning the guitar or strengthen their knowledge of musical theory.
thanks!