Maritime data sources
As I like both sailing, maritime industry and I do actually work in it and also my hobby is related to DIY-stuff around all these things, I am also interested in maritime data. A lot of it is pretty closed and available only commercially, but there are also multiple sources, including official ones, that are open.
This is my effort to collect some of them, consider it as the old-school “links” or “bookmarks” page.
Maritime safety information
Some concrete links: