Here's something for Jesse S.

[sliding-tom]

...and everybody else who's interested in chord substitutions in a blues progression: check out the Feb issue of GP. There's a great lesson for spicing up blues progressions. I've been using that kind of stuff for many years now and it works wonders!
Hey, it's a "Master Class" lesson - does that mean, I'm a master? ;)

[Los7]

dont mean to be rude....but whats GP?
i'd like to have a look see

[pc]

Guitar Player magazine. :)