Police and Fire Scans over the internet

This is a great site.  You can listen to police and fire scans from your local area or where ever you plan on traveling.  http://www.radioreference.com/apps/audio/  Right now listening to the city police scanner.  A drug bust of a couple of known felons.  And now there's a black Mazda that they are looking for.  Ten seconds later a black female walked into a house.  They have her locked into a room.  This is all 20 miles from me.  I can also listen to the local fire department and the sheriff.  Invaluable stuff.