Presocratics:
Heraclitus fragments (alternate)
Daodejing:
http://pages.ucsd.edu/~dkjordan/chin/LaoJuang/DDJTenTranslations.html
James Legge translation: http://www.sacred-texts.com/tao/taote.htm
D.C. Lau translation: http://terebess.hu/english/tao/lau.html
Gia-fu Feng and Jane English translation: http://terebess.hu/english/tao/gia.html
R.L. Wing translation (recommended but not available online): http://www.amazon.com/The-Tao-Power-Leadership-translation/dp/0385196377
E.M. Chen translation: http://terebess.hu/english/tao/e-m-chen.html
Webpage featuring numerous translations: http://terebess.hu/english/tao/_index.html
Buddhism:
http://www.accesstoinsight.org/
Etienne de La Boétie:
Hegel:
https://www.marxists.org/reference/archive/hegel/index.htm
Phenomenology of Spirit Analysis of the Text by J. N. Findlay
Half hour Hegel: lectures on every line of the Phenomenology
Marx and Engels:
https://www.marxists.org/archive/marx/index.htm
Rosa Luxemburg:
https://www.marxists.org/archive/luxemburg/index.htm
Herman Gorter:
Anton Pannekoek:
The fundamental demonstration of the incompatibility of Lenin’s thought with that of Marx.
George Orwell
Paul Mattick:
https://www.marxists.org/archive/mattick-paul/index.htm
Aldous Huxley:
https://publicintelligence.net/aldous-huxley-1962-u-c-berkeley-speech-on-the-ultimate-revolution/
recording: https://archive.org/details/AldousHuxley-TheUltimateRevolution
Amadeo Bordiga:
https://www.marxists.org/archive/bordiga/index.htm
italiano
Jacques Camatte:
OJTR:
Activism, the supreme stage of alienation
Maximilen Rubel:
Guy Debord:
français
Cyril Smith:
Marx vs. historical materialism
Myths about Marx:
http://marxmyths.org/index.php