This is a series of lessons that have absolutely no guitar in them (until the last one), but I think are essential to understanding how to play the instrument in time. Not "sexy" lessons full of scales and techniques but the actual building blocks that make you a "musician" and not just a "guitar owner"...
Time and Rhythm
http://markweinguitarlessons.com/ind...d=96&Itemid=35
Rhythm Exercises #1
http://markweinguitarlessons.com/ind...d=97&Itemid=35
Eighth Notes and Subdivision
http://markweinguitarlessons.com/ind...d=98&Itemid=35
Eighth Note Strumming
http://markweinguitarlessons.com/ind...=100&Itemid=35