Logic in philosophy

Logic; a list of websites on philosophical logic

Logic, Wikipedia entry.

The Journal of Philosophical Logic

Logical Fallacies
An Encyclopedia of Errors of Reasoning. The ability to identify logical fallacies in the arguments of others, and to avoid them in one’s own arguments, is both valuable and increasingly rare. Fallacious reasoning keeps us from knowing the truth, and the inability to think critically makes us vulnerable to manipulation by those skilled in the art of rhetoric…

Symbolic logic, Wikipedia entry.

Logical positivism

Analytic Philosophy
Article by Roger Jones on this tradition and its development from Frege to Rorty.

European Society for Analytic Philosophy
Organizational information, events, newsletter archive.

Factasia: Analytic Philosophy
The origins and divisions of this tradition.

Institute Vienna Circle

Vienna Circle
Wikipedia entry.

Philosophers of logic (Wikipedia entries)

George Boole

Gottlob Frege

W.V.O. Quine

Bertrand Russell

Ludwig Wittgenstein

Charles Sanders Peirce