OpenCPN Series 2

ShipPlotter displays complete information about ships that are within VHF range of your position using the Universal Automatic Identification System (AIS).

NavMonPc

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

Marine Howto and OpenCPN

OpenCPN is a free software (GPL) project to create a concise chart plotter and navigation software for use as an underway or planning tool.

Marine Howto

zyGrib - download and view weather forecast charts & data (winds; temp; cloud cover; etc) For Linux and Windows.


International maritime signal flags

XTides and its children