Check out these great blues bands: Backdoor Slam, 10 Years After, Grand Funk Railroad, Betty Sue and her Big Rockin' Daddys, The Blues Breakers, Robert Cray, Jonny Winter... man there are so many.
While you are at it, listen to the deep blues influence in the likes of Led Zeppelin, ACDC, The Dobbie Brothers, Lynard Skynard, BTO, The Guess WHo, G 'n' R, Alman Bros., ZZ Top, The Who, Canned Heat, Greatful Dead, ... just about all the classic rock bands..
Thanks for the tips on the others, Ill be sure to check em out!