Looking for advice on jazz guitar/piano

Curious as to some resources that teach playing and composing piano and guitar music in terms of jazz and blues. Have always been impressed by musicians on youTube type material demonstrating some amazingly smooth blues and jazz inspired improv.

I remember using this site a looong time ago and found it helpful. I don't know if it's helpful in retrospect, but it might get you going. This is really broad though, it would help to know where you're coming from or specific areas that you want to know about.

Oh yeah, Jamey Aebersold's play-along series of books/CDs is a pretty popular resource for learning jazz improv.

Check Mark Levine's books.