A very comprehensive and active site featuring something for both the listener and the practitioner.
Features audio downloads, interviews, signed (and knowledgeable) reviews, streaming video, 
forums, and the amusing "Gig From Hell" section for working musicians. 

           URL:  http://allaboutjazz.com/

Pick A Live Audio Station ... Internet RealPlayer or LiveAudio streams with a clickable map 
of the US to allow station selection.

           URL:  http://www.bumrock.com/netradio/

Be not deceived: this site is not strictly blues. However, the 200+ archived full-length concerts 
(recorded at various Houses of the Blues across the U.S.) - some of which are available in video
 - include many contemporary blues stars such as Buckwheat Zydeco, Duke Robillard, and Charlie 
Musselwhite.  (28K, 56K, and 100K speeds available).  "Six Degrees of the Blues" examines six 
facets of each of twenty blues giants.  HOB also offers and archive of intelligent audio (some video) 
interviews with over 100 artists, and over 100 text bios.

          URL: http://www.hob.com/ 

This is a commendable site overall, with hundreds of contributed CD reviews (mostly of newer 
releases), a chat room,  and chock full of worthwhile links, but EB is uniquely valuable for its Blues 
Netcasting links page , listing and describing some thirty blues-centric netcasts.

           URL: http://www.electricblues.com

 A good starting point for beginner and aficionado alike.  History, indivdual artists, regional sites, 
and lots of audio.

          URL: http://www.thebluehighway.com/

The lyrics to over 3,000 blues songs  (over half of which are accompanied by 30-second 

RealAudio samples) are sorted by artist, title,and topic. Also links to tabs and chords for 

over 1,000  blues songs.

           URL: http://blueslinks.tripod.com
 

Especially valuable for its hundreds of links to regional associations ands festivals.

But why no audio?

          URL: http://www.blues.org/ 

  Spirited portraits of blueswomen and bluesmen by contemporary painters.

          URL: http://www.egallery.com/jazz.html 

Chaotic but content-rich. This enthusiastic cyberstew is too free-form for novices, but those 

familiar with the genre will find it entertaining.                                                                     

        URL: http://www.island.net/~blues/