Bartleby.com
Hundreds of classic American works of fiction, non-fiction, verse, and reference, including the Harvard Classics

Early English Books 1475-1640
Digital facsimile page images of virtually every work printed in England, Ireland, Scotland, Wales and British North America and works in English printed elsewhere from 1473-1700 - from the first book printed in English by William Caxton, through the age of Spenser and Shakespeare and the tumult of the English Civil War.

LearningExpressLibrary
A comprehensive, interactive online learning platform of practice tests and tutorial course series designed to help you succeed on the academic or licensing tests such as civil service exams, GRE, GMAT, LSAT, MCAT, etc

Million Book Project
Over 10,000 free online books

National Academies Press
More than 3,700 online books in science, math and technology

netLibrary
Collection of 14,000 electronic books covering a wide variety of topics including fiction. Free account required.

Open Library
Ffree web access to important book collections from around the world.

Oxford Reference Online

Online access to the world's most trusted reference collection

Perseus Digital Library
A digital library of resources for the study of the humanities, including a large collection of materials, textual and visual, on the Archaic and Classical Greek world.

Project Gutenberg
the first and largest single collection of free electronic books.

Safari Technology Books Online
e-reference library of for programmers and IT professionals with topics including software, hardware and other computer issues