Department for Transport
http://www.dft.gov.uk

Shipping Forecast
http://www.metoffice.gov.uk/weather/marine/shipping_forecast.html

Revenue and Customs
http://www.hmrc.gov.uk/index.htm

Import and Export Guidelines for EU and outside EU
http://www.businesslink.gov.uk/

British International Freight Association
http://www.bifa.org

International Chamber of Commerce
http://www.iccwbo.org