By the Content Quality Evaluation, the recommended digital libraries in each subject area are:
· Philosophy, psychology, religion subject areas
(1) Chinese Philosophical Etext archive http://sangle.web.wesleyan.edu/etext/index.html
(2) Online Medieval & Classical Library http://omacl.org/
(3) Association of Religion Data Archives http://www.thearda.com/
(4) AhlulBayt Digital Islamic Library Project http://www.al-islam.org/index.php
(5) Philosophy Resources at Harvard http://hcl.harvard.edu/research/guides/philosophy/
· World History and history of Europe (Asia, Africa, Australia, New Zeal, and ETC)
(6) British Library Online Gallery http://www.bl.uk/onlinegallery/index.html
(7) EuroDocshttp://eudocs.lib.byu.edu/index.php/Main_Page
(8) Africa Focus: Sights and Sounds of a Continent University of Wisconsin Digital Collectionshttp://digicoll.library.wisc.edu/AfricaFocus/
· History of the America
(9) Library of Congress: American History & Culture
http://memory.loc.gov/ammem/index.html
(10) The National Archives Online Exhibits
http://www.archives.gov/exhibits/index.html
(11) Documenting the American South http://docsouth.unc.edu/
(12) American Journeys http://www.americanjourneys.org/
(13) Library of Congress: Historic Newspapers http://chroniclingamerica.loc.gov/
(14) University of California Digital library- calisphere
http://www.calisphere.universityofcalifornia.edu/
(15) Digital Past http://www.digitalpast.org/plugins/browse.php?type=collection
· Geography
(16) NASA's Visible Earth http://visibleearth.nasa.gov/
(17) David Rumsey Map Collection http://www.davidrumsey.com/
(18) Census Atlas of the United States
http://www.census.gov/population/www/cen2000/censusatlas/
· Social sciences
(19) Electronic Cultural Atlas Initiative http://www.ecai.org/
(20) The National Archives, Education Resources, UK
http://www.nationalarchives.gov.uk/education/
(21) ICPSR http://www.icpsr.umich.edu/icpsrweb/ICPSR/access/index.jsp
· Political science, law
(22) THOMAS http://thomas.loc.gov/
(23) GPO Access http://www.gpoaccess.gov/index.html
(24) Civil Rights Digital Library http://crdl.usg.edu/?Welcome&Welcome
(25) Harvard Law School Library Digital Collections
http://www.law.harvard.edu/library/special/exhibits/digital/index.html
· Education
(26) The National Library of Education
http://ies.ed.gov/ncee/projects/nat_ed_library.asp
(27) Exploratorium Digital Library http://www.exploratorium.edu/educate/dl.html
(28) HistoryMakershttp://www.thehistorymakers.com/
(29) SMETE digital library http://www.smete.org/smete/
· Music and books on music
(30) Database of Recorded American Music http://www.dramonline.org
(31) Sheet Music Consortium http://digital.library.ucla.edu/sheetmusic/
(32) California Sheet Music http://people.ischool.berkeley.edu/~mkduggan/neh.html
(33) E. AzaliaHackley Collection http://www.thehackley.org
· Arts
(34) NYPL Digital Gallery http://digitalgallery.nypl.org/nypldigital/index.cfm
(35) Making Sense of Modern Art http://www.sfmoma.org/pages/explore
(36) Art History Resources on the Web http://witcombe.sbc.edu/ARTHLinks4.html
(37) William Blake Archive http://www.blakearchive.org/blake/
· Language and literature
(38) ACLA (American Comparative Literature Association) http://www.acla.org/
(39) International children’s Digital Library http://en.childrenslibrary.org/
(40) Writers of the Purple Sage
http://azmemory.lib.az.us/cdm4/index.php?CISOROOT=/pplwriters
(41) Southeast Asia Digital Library (SADL) http://sea.lib.niu.edu/reslanguage.html
· Science
(42) National science Digital Library http://nsdl.org/
(43) U.S. Department of Energy http://www.energy.gov/sciencetech/index.htm
(44) National Science Foundation http://www.nsf.gov/
(45) Science Photo Library http://www.sciencephoto.com/index.html
(46) Analytical sciences Digital Library (ASDL) http://www.asdlib.org/index.php
(47) Public Library of Science http://www.plosbiology.org/home.action
· Medicine
(48) National library of medicine http://www.nlm.nih.gov/
(49) AMA (American Medical Association) http://www.ama-assn.org/
(50) ecancermedicalsciencehttp://www.ecancermedicalscience.com/
(51) U.S. Department of Health & Human Services HHS.gov http://www.hhs.gov/
(52) Children’s Medical Center
http://www.childrens.com/HealthLibrary/HealthLibContent.cfm
· Agriculture
(53) National Agricultural Library Digital Repository http://naldr.nal.usda.gov/
(54) Core Historical Literature of Agriculture in Cornell University
http://chla.library.cornell.edu/
(55) Western Waters Digital Library http://www.westernwaters.org/
· Technology
(56) National Institute of Standards and Technology http://www.nist.gov/index.html
(57) Dspace@MIT http://dspace.mit.edu/
(58) JSC Digital Image Collection http://images.jsc.nasa.gov/index.html
(59) IEEE computer society http://www.computer.org/portal/web/csdl
· Military science
(60) Military History and Military Science of The Library of Congress
http://www.loc.gov/rr/main/alcove9/military/military.html
(61) US Military Academy Digital Collections
http://digital-library.usma.edu/collections/
(62) United States Department of Defense http://www.defense.gov/