Utilities:

Conversion calculator: http://www.hindustancargoltd.in/conversioncalculator.html

Currency convertor: http://www.xe.com/

Container types: http://www.mccaughrinmaritime.com/Typeofcontainers.htm

Shipping Glossary: http://www.hindustancargoltd.in/m.html

http://www.exportbureau.com/trade_shipping_terms/F.html

or
http://www.teamglobal.in/a.html

World Sea Ports: http://e-ships.net/ports.php