Recommend some Blues music to a newbie


Don't listen to Blues at all, but recently when auditioning some equipment I heard a few tracks that I enjoyed tremendously. Not sure of one artist but the other was Eric Bibb. Simple vocals and accoustic guitar. I really liked it a lot.

Where to start?
What would you recommend?
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Joe Bonamassa rules! I will get to see him live in concert on Tuesday. Can't wait. Should be a killer show.

I also really like a CD called "Girls With Guitars". These chicks can really play and sing.
Highly recommend Jimmy Smith's album The Cat, no body has played the Hammond B3 organ like him before or since.