Ms. Azizi -

If you go here...it's the woodsongs site mentioned before you can also check out Duke Robillard (guitarist who's been around for a while....in this video he does swing/jump blues, but he's done lots of variations on the blues, including just plain old "blues" throughout his long career)...also check out Shemekia Copeland show #239. She's not "blues" in the strict definition of the word, but she has one helluva voice and she sort of reminds me of Etta James....

Lots of facets to the "blues," come to think of it.