General Sources

Many WorldCat records have links to digitized full text. Remember that there are frequently multiple records for the same book.

Google Book Search has digitized many pre-1923 books. Links to digitized books, whether digitized at Harvard or at another library are available through HOLLIS records, either through a Networked Resource link (Harvard books) or the "Discover more in Google Books" icon (from other libraries) To find books Google has digitized from other libraries, but which are not held at Harvard, search directly in the Google Book Search.

HathiTrust Digital Library includes a searchable database of digitized books and periodicals contributed by numerous libraries. Includes items contributed by these libraries to Google Books and to Internet Archive but with some unique material. Each full text item is linked to a standard library catalog record, thus providing good metadata. The catalog can be searched separately. Globally full text searchable, like Google Books but unlike Internet Archive. Full text is fully viewable. Single page pdfs can be downloaded, but pdf downloads of a whole work are not currently available at Harvard.

Internet Archive also offers much digitized full text, but unlike Google Books, it is not globally searchable.

Gottinger Digitalisierungs-Zentrum

The Online Books Page arranges electronic texts by Library of Congress call numbers.

OAISTER is the largest search engine for online academic material. Includes digitized book and journal articles, manuscript/archival material, photographic images, audio and visual files, data sets, and theses.

Digital Library Federation (DLF) Digital Collections Registry allows browsing of collections by Subject, Place, Time Period, and Title of Collection. Has much historical material.

INFOMINE (Scholarly Internet Resource Collections) Limit to format, e.g., images by choosing Advanced Search, then history is under SocSciHum. Resource Types under Browse Options for All Subject Categories at bottom of screen, and scrolling down to Images

Intute is a searchable, categorized link collection of academic resources. History resources are listed under Humanities. UK-based but worldwide in scope.

Digital Collections and Content (Institute of Museum and Library Services) includes much history, along with other topics. Offers a simple search, and browsing by subject, title, object type, and place. Entirely US collections. Can limit searches and browse by 8 main categories and numerous subcategories.

DLF (Digital Library Federation) OAI Portal includes digital resources of all types, archival and printed documents and collections, archival inventories, dissertations, etc., created by DLF member institutions. Search or browse by institutions.

Registry of Open Access Repositories (ROAR) Content Search Does not use the OAI-PMH protocol. Simple custom Google search of full text in the participating repositories

OpenDOAR (Directory of Open Access Repositories) uses a very simple Google search to search its over 1650 repositories worldwide. Includes all kinds of digital material. Cannot limit to particular types of material. Does not use OAI-PMH protocol unlike several others, so gets different results.

Compendium of Digital Collections (University of New Hampshire). Simple keyword search or select from list of subjects. Digital collections selected largely from US repositories, but some foreign.