Here is a list of college textbooks which can be read online for free. I will be adding to this list as I find more of them.
Principles of Accounting - This textbook offers an in-depth introduction to accounting and can be good preparation for the CLEP or DSST exams in accounting.
SmartHistory - Free online art history textbook.
General Astronomy - Wikibooks offers an online introduction to astronomy.
This Online Biology Book offers a good introduction to many areas of biology, including cell biology, anatomy, and eveolution.
An Ecology textbook is offered at this website.
Creation Science - Creationists might be interested in this online book which refutes the evolutionists' arguments in numerous areas of science.
Fundamentals of Microbiology - Introductory microbiology textbook from Washington State.
Chem1 Virtual Textbook - This textbook covers the first two semesters of college-level chemistry.
Chemistry Books Online - General, Organic, and Biochemistry
Blender - User Manual and free download for Blender, an open-source computer animation software.
How to Design Programs: An Introduction to Computing and Programming.
Introduction to Computer Science
Dick Baldwin's website offers a large assortment of instruction in various programming languages, including Java.
Fundamentals of Java - This online book presents Java programming in a simplified manner.
Introduction to Computer Science Using Java
Introduction to Programming in Java: An Interdisciplinary Approach - Free online textbook from Princeton.
Java programming is also offered in this online textbook.
Invent Your Own Computer Games With Python might be of interest to people who want to become game designers.
About.com offers online textbooks in Macroeconomics and Microeconomics.
CyberEconomics - Introductory economics textbook.
Online Economics Textbooks - Extensive collection of economics textbooks for all levels.
English Composition 1 Hypertextbook
The Cambridge History of English and American Literature
The Harvard Classics - 50 volumes of literature from all historical eras. This page also contains The Harvard Shelf of Fiction, which consists of 20 volumes of classic fiction.
Luminarium: An Anthology of English Literature - This free online textbook features extensive information on British authors from the 14th century to the 19th century.
Online Ethics Textbook
Academic American History
Europe in Retrospect - Modern European history.
History of Western Art and Civilization
U.S. History from precolonization to the present.
World History from prehistory to the 20th century.
Digital Dialects - This site offers free lessons in over 50 languages, some of which I'd never heard of until I saw this site. Oroma?
Grimoire - French literature for intermediate and advanced students.
Liberte - Beginners' French textbook in PDF fromat.
Latin from Wikibooks.
Spanish 1050 - Intermediate Spanish.
Spanish from Wikibooks.
A First Analysis Course
An introduction to Statistics can be found at this website.
An Online Calculus book is offered here in PDF format.
College Algebra in PDF format.
Electronic Statistics Textbook - This is a free online version of Statistics: Methods and Applications, which sells for $80 new at Amazon.
Elementary Calculus: An Infinitesimal Approach
Multivariable Calculus in PDF format.
Statistics: Problems and Exercises
Introduction to Music Theory
Understanding Basic Music Theory - A continuation of the introduction course.
Introduction to Philosophy
Essential Physics 1 is available for free online in PDF format.
Light and Matter offers an assortment of free physics textbooks online, both for non-physics majors and engineering students.
Psychology: An Introduction
Open Knowledge Guide to Public Speaking
Exploring Religions - Information about the major world religions.
Philosophy of Religion
Sacred Texts offers extensive information on many world religions, along with parapsychology, the supernatural, prophets, and related subjects.
Introduction to Sociology from Wikibooks.
Online Technical Writing Textbook
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