Wikipedia: Logical Positivism
- Entry from the openly-edited encyclopedia.
- http://en.wikipedia.org/wiki/Logical_positivism

Neopositivism: Linguistic Philosophy and Critical Rationalism
- A section from Andras Gedo's work Crisis Consciousness in Contemporary Philosophy.
- http://www.autodidactproject.org/other/gedoco2a.html

PhilSci Archive: Logical Positivism/Logical Empiricism
- Collection of online papers in Microsoft Word format, with abstracts in HTML.
- http://philsci-archive.pitt.edu/view/subjects/logical-positivism-empiricism.html

FOLDOC: Logical Positivism
- Entry from this philosophical database, including an excerpt from The Ism Book.
- http://www.swif.uniba.it/lei/foldop/foldoc.cgi?logical+positivism

Columbia Encyclopedia: Logical Positivism
- A concise description of this movement.
- http://www.bartleby.com/65/lo/logicalp.html

PhilosophyPages: Logical Positivism
- Concise survey of this school and the related doctrine of "ethical emotivism."
- http://www.philosophypages.com/hy/6q.htm