Hammersly's Ironclads republishes an 1881 naval encyclopedia article on the rise of armored warships, preserving a contemporary technical explanation of how shells, armor, broadside ships and turrets changed naval warfare.
Henning Umland's CelNav site preserves a compact guide to celestial navigation with tutorials, freeware, links, and a homepage whose visitor counter dates back to May 1997.
1812Privateers.org organizes privateer vessels, captains, letters of marque, prisoners, declarations, engagements, port records, and primary-source references from the War of 1812 into a searchable research site.
The Virtual Glass Museum's fishing-float archive documents the sizes, shapes, markings, countries, manufacturing methods, and collecting mysteries of the glass floats once used on fishing nets and lines.
SSRichardMontgomery.com is a long-running private research site about the Liberty ship wreck in the Thames Estuary, combining government reports, photographs, ship records, maps, news clippings, and the author's strongly argued risk assessments.
The Lighthouse Directory began in 1999 during the relocation of Cape Hatteras Light and now catalogs more than 24,800 lighthouses worldwide with history, operating data, preservation notes, access information, and tens of thousands of links.
WreckHunter is a hand-built New England shipwreck guide with more than 200 wreck pages, photographs, coordinates, diving notes, vessel histories, and contributions from local divers.
Patricia Seed's Rice University Latitude site uses maps and linked lessons to explain how latitude, navigation, astronomy, currents, weather, and cartography changed ocean travel.
A 1997-era North Carolina website preserved the period when the Beaufort Inlet wreck believed to be Blackbeard's Queen Anne's Revenge was still being investigated, photographed and recovered artifact by artifact.
George Robinson and David Waller built a searchable history of Tyne shipbuilders and vessels using simple HTML, yard-number records, year indexes and source-heavy ship histories.
Roy Mengot's Titanic breakup page uses wreck mapping, survivor testimony, finite-element studies and ship construction details to argue for a bottom-up structural failure rather than the familiar movie version.
Keith M. Steffke's Old Shipbuilder site documents a private Great Lakes maritime archive containing more than 65,000 photographs, 3,000 rare reference volumes, shipyard records, blueprints, diaries and thousands of vessel files.
Cindy Vallar's Pirates & Privateers site has spent years separating maritime history from pirate mythology with source lists, specialist articles, ship terminology and continuously updated research pages.