Air University Library Military Periodicals - Military History

APeJ Search - Sciences - Physics/Math at Cornell University

Bielefeld Academic Search Engine (BASE) - All subjects, particularly for academic open access web resources 

ChemXseer (Penn State) - Chemistry

Digital Library of the Commons - Natural Sciences, Geography, Agriculture, Sustainability, etc. ; provides free and open access to full-text articles, papers, and dissertations

Directory of Open Access Journals (DOAJ) - free, full-text, quality controlled scientific and scholarly journals

Education Resources Information Center (ERIC) - online digital library of education research and information; great source for authoritative adolescent (teen and pre-teen) Psychology data

National Science Digital Library (NSDL) - Science

SAO/NASA Astrophysics Data System - Astrophysics, Geophysics, Physics

Last modified: Monday, 16 February 2015, 11:03 PM