freedomzero
Useful for drivers who want to record what has happened on the road when involved in an accident.
Those people would rather want a video camera (dash cam) that starts recording nonstop as soon as the engine starts, rather than a camera that takes still pictures every now and then and automagically becomes a useless brick if you don't pay for the subscription stuff (see ET3D's post).
http://www.youtube.com/techmoan << this guy reviews various cheap car dashcams, “spy”cams and other stuff
http://www.youtube.com/user/VodkaVideo/videos <<< ..and this channel is devoted to dashcam crashes. I find those interesting to watch for some strange reason O.o
(Some of the earlier videos on the VodkaVideo channel are blocked in some countries due to the music used in them. So if some “episode” numbers are missing, that's why. In Germany, it starts with #2 and then goes straight to #7. all the ones in between are blocked here, which sucks, but that's what proxy servers are for :p)