The links on these pages are by no means comprehensive. They reflect my research methods and interests, which center on the U.S. and Europe.
Please feel free to propose additions or corrections to my lists, which I will revise as time permits.
Virtual archives—online collections of documents and images
The Avalon Project, Documents in Law, History and Diplomacy (4000bce-2000+), Yale Law School
Europeana, showcasing cultural heritage from European museums, galleries, libraries, and archives; includes a collection on "Industrial Heritage"
Gallica, Digital Library of the Bibliothèque nationale de France
Digitale Texte im Seminar für Wirtschafts- und Unternehmensgeschichte, Universität Köln
Founders Online, papers of six Founding Fathers in the U.S. National Archives
Virginia Tech Libraries ImageBase—includes 12,000+ railroad photos
McGill University's In Pursuit of Adventure: The Fur Trade in Canada and the North West Company—offering a full-text searchable database of the Masson Papers