I use Twitter's TweetDeck and arrange all the people I follow into categories and I'd like to add one for music/theory/guitar.

Anyone know some good accounts to follow who post little bite sized pieces of music theory or guitar facts, or random stuff like that?
My Gear:
-Fender American 1962 Stratocaster Reissue
-1984 Marshall JCM 800 2204
-Ibanez Wh-10 Original
-Boss DS-2 Distortion
-Boss CE-5 Chorus