Watch the Dm to G Chord Connection online guitar lesson by Brad Carlton from Guitar Lab: Vertical Soloing
I play rhythm guitar using the modes, pentatonics and arpeggios in this lesson. I'll also show you some extended jazz voicings and "bubble" parts. This is where knowing your theory is invaluable. By knowing what mode you're in at any given moment, you can clearly see what options exist for extending the harmony. You then have the luxury of coloring the music as you choose and the payoff is in both realms of guitar: rhythm and lead.