MSN.COM has portions of the New Orleans JazzFest available for your listening pleasure online. Live webcasts are scheduled for Sunday, April 30th, and Sunday, May 7th, from 3 to 8 pm CST. From what I can tell, the webcasts are free - though the samples (ranging from Dr. John to Elvis Costello to Louis Armstrong) are not. The site has a nice selection of videos, too: the interview with Clarence "Gatemouth" Brown is a must-see.
"If it were necessary to identify one individual who best represents American music in all of its idioms and styles ... one who could single-handedly play the soundtrack that has sprung forth from a nation born from hopes, sweat, fears, blood, misdeeds and glory ... a land that grew an unheralded voice as it expanded westward and cultures clashed, cultures united, cultures bore new means of expressing their emotions - things called the blues, jazz, honky-tonk and Cajun - if we needed one person who lives and breathes all things American music and can present it in all its varied glory ... Clarence "Gatemouth" Brown is that person."
--Danté Domininick ©2004 Rockzillaworld Magazine, from www.gatemouth.com