Internet Encyclopedia of Philosophy: Logical Positivism  
   Detailed article by Mauro Murzi, reviewing the development and legacy of this movement.
   http://www.utm.edu/research/iep/l/logpos.htm

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

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

Comte, Ayer and Logical Positivism  
   Lecture reviewing the development of this doctrine and its impact on psychology.
   http://www.sar.bolton.ac.uk/ltl/lecture2/logical_positivism.htm

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

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

Logical Positivism  
   Site dedicated to this doctrine, with quotes, frequently asked questions, and links.
   http://logicalpositivism.org/shweb?file=home

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