Berkeley Groks  
   Wednesday radio science program from Berkeley, CA available live online using Realplayer. Includes MP3 archives of previous episodes, Bay Area science calendar and Question of the Week.
   http://www.ocf.berkeley.edu/~clgroks/

TWIS: This Week In Science  
   Weekly science news radio show featuring current topics and issues. Site includes live internet radio, streaming audio archives of past shows, weekly text articles, forum and extensive links.
   http://www.twis.org/

UC: Science Today  
   Five-day-a-week, one-minute radio science program features the latest scientific breakthoughs and discoveries. Includes text and audio program archives plus a monthly version in QuickTime format. From the University of California.
   http://www.ucop.edu/sciencetoday

The Naked Scientists Online  
   Online, on-demand radio show focuses on science, technology and medicine. Includes audio archives, articles and news, Ask a Scientist and Cafe Scientifique.
   http://thenakedscientists.com/

NPR: Science Friday with Ira Flatow  
   Weekly two-hour radio program about science, technology and environment issues in the news. Includes RealAudio archives, FAQ, forum, book discussions and SciFri Kids section. From National Public Radio (USA).
   http://www.sciencefriday.com/

CBC Radio One: Quirks & Quarks  
   Weekly show from Canada hosted by Bob McDonald and broadcast on Saturdays. Listen to show archives using RealAudio, mp3 and ogg files.
   http://radio.cbc.ca/programs/quirks/

BBC Radio 4: Science  
   Regular series programmes plus older occasional series and documentaries available live or with Listen Again. Includes upcoming programmes, science puzzles, message boards and webchat transcripts.
   http://www.bbc.co.uk/radio4/science/