Created through a partnership between NASA and the Internet Archive, NASA imagines offers public access to NASA's image, video, and audio collections in a single, searchable resource.
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As of June 2, 2011, all PDF versions of books published by the National Academies Press are downloadable to anyone free of charge.
The National Ocean Service (NOS) studies, monitors, and protects coastaland marine areas in the United States.
19th Century Collections Online is a multi-year global digitization and publishing program focusing on archival collections of primary sources providing full-text, fully searchable content.
Rarebooks.stanford.edu is a resource for scholars, students, librarians, book professionals, and collectors. Here you can search across and within the full text of over 100 rare book bibliographies, library catalogs and sales catalogs. Subjects cover early printing, world literature, natural history, science, medicine, theology, cultural and area studies, Judaica, music, theology, art and architecture, among others.
Contains millions of index terms to specialized subject encyclopedias, compendia, and scholarly handbooks.
RefWorks is a Web-based bibliography and database manager that allows users to create their own personal database by importing references from text files or online databases. Researchers can use these references in writing their papers and automatically format the paper and the bibliography in seconds.
First time users can create an account on refworks.proquest.com and select the “Create Account” link and use your USC email to start the account.
First time users can create an account on refworks.proquest.com and select the “Create Account” link and use your USC email to start the account.