"What the @!#%$! Do Those Motorcycle Hand Signals Mean?" - Karl "Two Tone" Leray by

Motorcyclists use hand signals when riding, and always when riding with a group, when the signals get passed back to all the riders. Motorists may be curious about the signals, too, and want to be aware of what motorcyclists are about to do in the roadway, or what safety message the motorcyclist may be trying to give them. For beginning motorcycle enthusiasts or curious motorists, knowing what the signals mean is welcome information.
More info: http://igniteanchorage.com/2009/12/08/karl-leray/