The ESIP (Earth Science Information Partnership) Federation has set up a wiki for sharing scientific and technical information on the Japan (also called the Honshu or Sendai quake), but it includes a variety of news aggregations and links as well.
The ESRI map [right] has interactive links to YouTube tsunami and other videos of damage from around the country.
Kudos to Erin Robinson at ESIP Federation for setting this up and starting the compilations.