The Marks Project is a no-fee research hub of American Studio Ceramics and a free marks registry for contemporary American ceramic artists.
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Readers' Guide Retrospective: 1890-1982 provides indexing of over three million articles from more than 550 leading magazines, including full coverage of the original print volumes of Readers' Guide to Periodical Literature.
The World Digital Library is a cooperative project of the Library of Congress, the United Nations Educational Scientific and Cultural Organization (UNESCO), and partner libraries, archives, and educational and cultural institutions from the United States and around the world.
Sponsor of an annual contest for the best in photojournalism, and now in multimedia as well, this site includes the images of the winners of the most recent 2-3 years of the awards.
WorldCat is an online union catalog of materials held by OCLC member libraries.