The National Academies Press: http://www.nap.edu

University of Adelaide Library's collection of Web books:
http://etext.library.adelaide.edu.au/
The collection includes classic works of Literature, Philosophy,

University of California, eScholarship Edition:
http://content.cdlib.org/escholarship/
The eScholarship Editions collection includes almost 2000 books from
academic presses on a range of topics, including art, science,

The Online Books Page: http://onlinebooks.library.upenn.edu/
Listing over 25,000 free books on the Web. The site is hosted by the


PSU's Electronic Classics Site:
http://www2.hn.psu.edu/faculty/jmanis/jimspdf.htm
Classic works of Literature.