Watch the Texas Shuffle online guitar lesson by TrueFire from Play Blues Guitar 6: Soloing Principles
Texas Shuffle - Solo Variations is a video guitar lesson presented by David Hamburger and is sourced from Blues Alchemy.
A lot of the snap and bite that Albert Collins got out of his Telecaster had to do with the fact that he played with a capo and picked with his index finger instead of using a pick. You can still produce that Collins sound by palming your pick temporarily, then hooking your index finger under a string, pulling away from the guitar and then letting the string snap back to the fretboard. For extra credit, hammer on to another note immediately after.