Came across this. There are several streaming radio stations that do jazz. Good stuff. Click the source link for more stations.
Classic Jazz Music Stations – USA:
Here are around 30 of the best full time “Classic Jazz” radio stations in the USA. They are broadcasting “live” from various locales across the country. All these stations have been very carefully selected based the on quantity and quality of the jazz they play. Just click on the station’s name and it you will go directly to the music. Enjoy…
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(Via Jazz Radio Online)