Found this while wasting some time. Ahhhh... I mean doing serious adult stuff kind of research, yeah that's what I meant to say.
MarineTraffic.com shows vessel traffic using AIS data. Doesn't cover all areas, the FAQ explains that. Interesting though.
http://www.marinetraffic.com/ais/default.aspx?mmsi=338092719¢erx=-122.6723¢ery=45.50997&zoom=10&type_color=9 (http://www.marinetraffic.com/ais/default.aspx?mmsi=338092719¢erx=-122.6723¢ery=45.50997&zoom=10&type_color=9)
mel
Thanks for sharing. I enjoyed clicking on the pleasure craft icons in and around Charleston Harbor and being treated to some beautiful sailing yachts.