HathiTrust is a partnership of academic & research institutions, offering a collection of millions of titles digitized from libraries around the world. It is a great resource for primary source material.
Significant primary materials from all countries and cultures, available in multilingual format. Content includes books, manuscripts, maps, newspapers, journals, prints and photographs, sound recordings, and films.
WDL items can be browsed by place, time, topic, type of item, language, and contributing institution. The search feature can be used to search all of the descriptions and the full text of printed books on the site. The WDL is a project of the U.S. Library of Congress, carried out with the support of the United Nations Educational, Cultural and Scientific Organization (UNESCO), and in cooperation with libraries, archives, museums, educational institutions, and international organizations from around the world.