Digital
http://www.archive.org/ (Rank: 545)
http://www.questia.com/ (Rank: 3623)
http://www.ibiblio.org (Rank: 4875)
http://memory.loc.gov/ (Rank: 11758)
http://www.cdlib.org/ (Rank: 16260)
http://citeseer.ist.psu.edu/ (Rank: 22141)
http://www.perseus.tufts.edu/ (Rank: 23979)
http://www.ceeol.com (Rank: 25300)
http://www.sailor.lib.md.us/ (Rank: 27003)
http://dsal.uchicago.edu/ (Rank: 30329)
http://nsdl.org/ (Rank: 41925)
http://digital.library.upenn.edu/ (Rank: 44332)
http://www.childrenslibrary.org/ (Rank: 49602)
http://www.archive.org/details/movies (Rank: 51851)
http://digitalgallery.nypl.org/ (Rank: 67063)
http://www.intratext.com/ (Rank: 70894)
http://sunsite.berkeley.edu/ (Rank: 75635)
http://www.dlib.indiana.edu/ (Rank: 103821)
http://www.kyvl.org/ (Rank: 127664)
http://www.oac.cdlib.org/ (Rank: 134525)