#2
Buddy Guy and Ray Charles.

And Mary Had a Little Lamb is a 12 bar song. So is that BB King song.

Also: Junior Wells, Earl Hooker, Magic Sam, Ry Cooder, Captain Beefheart and the Magic Band, and Jimmy Rogers are worth checking out.
#3
Key to the Highway is an 8 bar blues I think.
Ticking away the moments that make up a dull day
You fritter and waste the hours in an offhand way
Kicking around on a piece of ground in your home town
Waiting for someone or something to show you the way
#4
Quote by Dimebag22
Key to the Highway is an 8 bar blues I think.

I think Sittin of the World is a 9 bar song.
#7
Quote by Dale_kerigan
nah 8 bar

Wiki says nine, and I counted them out. It's nine.
#10
check out some of the grateful dead's blues tunes with Pigpen:

Lovelight
Good Lovin'
Hard To Handle
In The Midnight Hour

I'm talking about live versions by the way.
#12
If you want some funky blues, try Mos Def's New Danger album. Blue Black Jack especially.