Watch the Rake Is Dirty online guitar lesson by Corey Congilio from Rhythm Factory: Texas Blues
Some of the great Texas blues players play rhythm very aggressively. Stevie Ray Vaughan is obviously the patriarch of this approach but, you can hear players like Chris Duarte and Kenny Wayne Shepherd play with this feel. An underlying theme throughout this course will be the use of the raking technique. You'll want to pay close attention to my right hand. Notice how I aggressively play almost all of the strings. I'm muting with my left hand to stop unwanted strings from ringing. This is a tough technique to get. Seems simple enough but, it's not. Don't be afraid to play aggressively. You may even break a string but, that's part of the process!