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A "gateway to over 35,300 websites and databases worldwide, containing over 5.5 million e-prints in basic and applied sciences, primarily in physics but also including subject areas such as chemistry, biology and life sciences, materials science, nuclear sciences and engineering, energy research, computer and information technologies, and other disciplines."
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OpenDOAR is an authoritative directory of academic open access repositories. Each OpenDOAR repository has been visited by project staff to check the information that is recorded here. This in-depth approach does not rely on automated analysis and gives a quality-controlled list of repositories.
Mathematics
ORBIT, a.k.a. The Open Resource Bank for Interactive Teaching, from the University of Cambridge, focuses on providing resources for learning in mathematics and science.
Science
Biomed Central provides access to free online scientific journals and other publications.
ORBIT, a.k.a. The Open Resource Bank for Interactive Teaching, from the University of Cambridge, focuses on providing resources for learning in mathematics and science.
Social Studies
The American Memory Collection from The Library of Congress includes a rich selection of artifacts for student examination.
World Languages
MERLOT World Languages is an interactive community of language teachers, featuring a wide variety of materials for use online and in the classroom.
Library Information and Media Center - Monona Grove High School - Monona, Wisconsin