KPLU.org - Pacific Lutheran University (believe it or not)
Best Jazz within 1000 miles. Decent Blues stream too.
Sadly, only available in Real and WMP formats... but good enough music, knowledgeable jocks, and NPR news to be worth slumming players for.
For days I'm more geek than hipster, Houston Chronicle has a Real stream of
International Space Station Live Audio, or perhaps more space sounds from
here or
there in the interether.