Publication coverage: 1940-Includes author-written abstracts for articles published in journals, as well as for books, book reviews, and anthologies written in English, Spanish, German, French, Italian, Russian, Chinese or Japanese. Subject coverage includes aesthetics, epistemology, ethics, logic, and metaphysics, the history of philosophy, metaphilosophy, political philosophy, and the philosophy of education, history, language, law, religion and science.
Publication coverage: 1896 - presentCollection of publications from the American Geophysical Union (includes 14 AGU journals, 6 partnered journals, 3 book series, and lectures/interviews.)
Publication coverage: 1962 - presentThe SPIE Digital Library is the world's largest collection of optics and applied photonics research. It indexes journals and conference proceedings from 1962 to the present.
Publication coverage: October 2005 to present.
Publication coverage: Coverage is selective back to 1991.
Publication coverage: 1940-MathSciNet is a searchable online bibliographic database created by the American Mathematical Society in 1996.
Publication coverage: 1960s-presentTRID contains more than 1.1 million references to the international transportation research literature compiled from the Transportation Research Board’s Transportation Research Information Services (TRIS) Database and the OECD’s Joint Transport Research Centre’s International Transport Research Documentation (ITRD) Database.
Publication coverage: Varies by titleKnovel is a searchable database of more than 5,000 engineering and applied science handbooks and other reference works.
Publication coverage: Sept 1975 - present (updated monthly)Annual record of books, manuscripts, autographs, maps and broadsides sold at auction in North America, the UK and Europe.
Publication coverage: Varies by titleA joint project of the Johns Hopkins University Press and the Milton S. Eisenhower Library at JHU. Every journal is heavily indexed, with "critically acclaimed articles by the most respected scholars in their fields."