Karl Marx: The Story of His Life
- Biography of Karl Marx written in 1918 by Franz Mehring.
- http://www.marxists.org/archive/mehring/1918/marx/

Spartacus Educational: Karl Marx
- Introduction to this important thinker. Features a brief discussion of his life and works, including The Communist Manifesto. Includes excerpts from his writings.
- http://www.spartacus.schoolnet.co.uk/TUmarx.htm

Two Months of Red Splendor: The Paris Commune and Marx' Theory of Revolution
- An analysis of the impact the Paris Commune of 1871 had on the revolutionary thinking of Karl Marx.
- http://www.runmuki.com/paul/writing/marx.html

Communist Manifesto
- Background on the publication of the Communist Manifesto and presentation of some special editions from the International Institute of Social History's collection, including the only remaining handwritten page from the first draft.
- http://www.iisg.nl/collections/manifest/index.php

The Communist Manifesto
- Etext at Project Gutenberg.
- http://www.gutenberg.org/etext/61

Free Online Library - Karl Marx & Frederick Engles
- Biographical information.
- http://marx.thefreelibrary.com/

"Communist Manifesto" as mp3 audiobook
- Free audiobook of the Manifesto as narrated by Robert MacDonald.
- http://www.audiobooksforfree.com/download/default.asp?refnum=1000317

Karl Marx, 1818-1883
- Biography from The History Guide: Lectures on Modern European Intellectual History.
- http://www.historyguide.org/intellect/marx.html

Astrocartography of Karl Marx's Least-aspected Mercury
- Biography of Karl Marx with a special focus on how the planetary symbols of Mercury and Neptune were reflected in his life and work, by renowned astrocartographer Rob Couteau
- http://www.dominantstar.com/b_marx.htm

Squashed Marx
- Condensed edition of Marx and Engels 'The German Ideology' with study notes and glossary.
- http://www.btinternet.com/~glynhughes/squashed/marx.htm

Karl Marx, Manifesto of the Communist Party
- Online version of the text.
- http://www.hartford-hwp.com/archives/26/176.html

Marx
- A brief discussion of the life and works of Karl Marx, with links to electronic texts and additional information.
- http://www.philosophypages.com/ph/marx.htm

Workers of the World Unite
- Information about Karl Marx and the Marx Memorial Library.
- http://www.workersoftheworldunite.com/

Reflections on Karl Marx
- A biographical lecture on Marx by Steven Kreis.
- http://www.historyguide.org/intellect/lecture24a.html

The MarX-Files
- An annotated web guide containing links to the major works of Karl Marx and Friedrich Engels as well as other Marxist resources.
- http://www.appstate.edu/~stanovskydj/marxfiles.html

Philosophers: Karl Marx
- Biographical notes from The Window: Philosophy on the Internet.
- http://www.trincoll.edu/depts/phil/philo/phils/marx.html

Marx's 1844 Manuscripts Hypertext
- Karl Marx's most enigmatic text available online in hypertext form that follows the original pagination and layout.
- http://home.freeuk.com/lemmaesthetics/index.htm