Space X has announced a 4:00 PM PDT launch attempt of their Falcon 1 rocket. This will be their third attempt to launch a Falcon 1. The first attempt exploded shortly after takeoff. The second attempt had problems with its second stage and just failed to make orbit.
They are broadcasting the lauch attempt live on the web, beginning at 3:30 PM PDT:
Live Webcast of Falcon 1 Launch