ShipPlotter displays complete information about ships that are within VHF range of your position using the Universal Automatic Identification System (AIS).
ITU Search for Ship Particulars - This will search the International Telecommunications Database
AISMon and virtual com port
VT Explorer is a AIS viewer application which provides a graphic visualiztion of AIS targets onto electronic charts
AIS Dispatcher is an AIS data forwarding utility
AIS Server Lite