Organic Chemistry Practice Problems at Michigan State University

William Reusch

A huge set of very well-organized practice problems that will help any O-Chem student.

Link to Full Review | Link to website | Copyright Type: standard copyright

Virtual Textbook of Organic Chemistry

William Reusch

An excellent and very popular online-only o-chem book.

Link to Full Review | Link to website | Copyright Type: Creative Commons Attribution-NonCommerical-NoDerivatives 2.0

WebElements

Dr. Mark Winter, Sheffield University

Not a textbook at all, but rather an interactive periodic table.

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Organic Chemistry Online Learning Center

Francis Carey

Excellent companion site for any O-Chem textbook.

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Virtual Chembook

Charles E. Ophardt, Elmhurst College

An online-only book that’s used by the author for three 100-level classes: Organic and Biochemistry, Environmental Issues, and Demo Labs.

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Water Structure and Behavior

Martin Chaplin

A comprehensive online-only book on all things water—useful for environmental scientists, chemists, phyisicists, biologists, and other -ists.

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Understanding Chemistry

Jim Clark

An online-only guide to Chemistry that’s apparently intended to supplement any printed textbook.

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Organic Chemistry

Richard and Sally Daley

A very popular free version of a print O-Chem book.

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ScienceWorld

Eric Weisstein

Science World is a top-notch website that will serve any science and/or math student very well. The site has individual sections for Chemistry, Math, Physics, Astronomy, and Science Biographies.

Link to Full Review | Link to website | Copyright Type: Unknown

Math World

Eric Weisstein

Science World is a top-notch website that will serve any science and/or math student very well. The site has individual sections for Chemistry, Math, Physics, Astronomy, and Science Biographies.

Link to Full Review | Link to website | Copyright Type: standard copyright