The following video captures the sound of the explosion from the meteor:
For information on near earth objects see EarthDirectory's "The World Directory of Near Earth Object Organizations and Related Sites."
Editor's Update 2/17/2012: NASA Scientists now believe that the meteor that exploded over Russian was approximately 55 feet wide, weighed approximately 10,000 tons and was travelling at approximately 40,000 mph. They've rated the explosion at 500 kilotons, 30 times more powerful than the Hiroshima bomb.
