IndexCat, the online version of the Index-Catalogue of the Library of the Surgeon-General's Office, U.S. Army (61 volumes in 5 series, 1880-1961), is a comprehensive subject catalog of books, pamphlets, dissertations, reports, and journal articles published from the 17th-20th century and held by National Library of Medicine
HathiTrust is a shared digital repository created by major research libraries. It offers searching of the full text of books and full access to works in the public domain. Works in nearly every subject, including medicine. Includes many works in full text (published before 1923).
This National Library of Medicine collection from the 1960's to present features interview with physicians, scientists, medical librarians, government administrators, and health-business executives on a variety of topics related to medicine and health sciences. Many included searchable transcripts.
The University of Pittsburgh’s site hosts more than two-dozen videos featuring past speakers from the C. F. Reynolds Medical History Society’s annual lecture series. The lectures cover a broad range of subjects, including the history of cystic fibrosis, eugenics, and medieval medicine.