Don's Depot grew from R. Donald Ross's railroad photo collecting hobby, begun in 1946, into a huge web archive organized by railroad company with scans from his collection and contributions from other railfans.
Richard Leonard's Rail Archive combines personal 1950s railroad photography with scans of historic railroad booklets, manuals, catalogs, and contributed images.
Donald R. Hensley Jr.'s Tap Lines has spent decades preserving Southeastern railroad history, photographs, short-line research, industrial railways, and digitized reference material.
RailroadSignals.us documents semaphore, searchlight, color-light, position-light, CPL, and other American signal systems while many of the old installations disappear from service.
RailroadMichigan is a hobby-built photographic archive covering current and historical railroads across Michigan and the Great Lakes region, including rosters, short lines, interurbans, equipment, and contributed images.
Niagara Railfan is an old enthusiast site built around railway photography, trackside information, and the changing rail landscape around Ontario's Niagara region.
Arthur John Huneke's ARRT's ARRCHIVES documents Long Island Rail Road history through photographs, timetables, track plans, newspaper clippings, tickets, branch histories and relentless correction of tiny details.