The British Public Record Office
The Canadian Heritage Information Network (CHIN)
Convicts To Australia ... Convict Ships
The Dictionary of American Naval Fighting Ships Online (Partial)
The GENSEEK Ships Index (World Wide, 1851 - 1900, with links to other genealogically useful shipping pages)
Lou Alfano's Immigrant Ship Information (Ship Descriptions from various Internet mailing lists list and from direct submissions)
the national maritime museum passenger research guide
Passengers in Time (Links to ships and passenger lists)
PearlsPad of New Zealand Genealogy