Open Nautical Charts offers free seacharts for everybody. This charts are usable (offline) with several ship-plotters and Navigation-equipement on board. kap, Png, Jpr, png-cal, For user with Open CPN or SeaClear and other.
OSIOSS (Open Source Integrated Observing System Software) is a collection of code which can be used for geospatial observing systems merging data collection, management and products solutions with ocean observing systems (OOS) as an initial focus.