Lane splitting on a bike is one of the big advantages of a motorcycle in heavy traffic. However, you not only have to be sure you can legally do it (only legal in California), but you have to be EXTREMELY careful.
These two bikers were screaming down a highway in Georgia while illegally lane splitting. Sure enough, disaster strikes. They are moving entirely too fast when a car in front of them changes lanes. The first biker can't correct in time and completely eats bumper and flies over his handle bars!