I guess most have been across this site that allows live ship tracking: http://www.marinetraffic.com/ais/
If not, then it's well worth a visit if only just out of interest.
I have been there before, but the following story brought it back to my attention:
Read more: http://www.dailymail.co.uk/home/mosl...#ixzz0fT686BhkThe biggest and most secretive gathering of ships in maritime history lies at anchor east of Singapore. Never before photographed, it is bigger than the U.S. and British navies combined but has no crew, no cargo and no destination - and is why your Christmas stocking may be on the light side this year
A couple of years ago these ships would be steaming back and forth. Now 12 per cent are doing nothing
You may wish to know this because, if ever you had an irrational desire to charter one, now would be the time. This time last year, an Aframax tanker capable of carrying 80,000 tons of cargo would cost £31,000 a day ($50,000). Now it is about £3,400 ($5,500).