Golly! A jazz thread.
Go hear some live jazz too. You can learn from watching how the musicians interact, etc.
With a little experience you may be able to hear why some players are great and most are not :-)
Good jazz is a wonderful art form.
There are a few free (no cost) jazz video sites you can visit too.
Example:
http://www.youtube.com/watch?v=bKX3U...ch=jazz%20bass