TransactionalView - A site devoted to John Dewey and Arthur Bentley's transactional philosophy of science as laid out in their 1949 book "Knowing and the Known." With articles, readings, and a mailing list. - http://www.transactionalview.org/
Science and the Philosophy of Science - Directory devoted to the field includes definitions, examples (with swans!), glossary, books, induction, deduction and abduction. By Martin Sewell. - http://www.science.gb.net
Science and Spirituality - Article examines relations between two modes of cognition: rational-scientific and intuitive-spiritual. - http://cogprints.ecs.soton.ac.uk/00002680/01/spiritualitysystems.html
Philosophy of Science Events - A list maintained by the British Society for the Philosophy of Science. - http://www.bris.ac.uk/Depts/Philosophy/BSPS/Events.html
Abuddhas Memes - Weblog dedicated to science, philosophy, education and freedom. - http://www.drmenlo.com/abuddha/bookmark.htm
Philosophy of Science Resources - Resource page supplementing Bruce Janz' philosophy of science course. - http://pegasus.cc.ucf.edu/~janzb/science/
Laws of Nature - Philosophical theories about what it is to be a law; from the Stanford Encyclopedia by John W. Carroll. - http://plato.stanford.edu/entries/laws-of-nature/
Theories of Explanation - Entry on explanation in the sciences from the Internet Encyclopedia of Philosophy. - http://www.utm.edu/research/iep/e/explanat.htm
Scientific Explanation - Philosophical theories about the nature of explanation in science; from the Stanford Encyclopedia by James Woodward. - http://plato.stanford.edu/entries/scientific-explanation/
Philsci Archive - An electronic archive for preprints in the philosophy of science. - http://philsci-archive.pitt.edu/
Intertheory Relations in Physics - Discussion of theory reduction in science; by Robert Batterman from the Stanford Encyclopedia. - http://plato.stanford.edu/entries/physics-interrelate/
Social Dimensions of Scientific Knowledge - Discussess the impact of social relations and values on scientific research; from the Stanford Encyclopedia by Helen Longino. - http://plato.stanford.edu/entries/scientific-knowledge-social/
Scientific Realism - Stanford Encyclopedia entry on thesis that science discovers truths about a theory-independent reality; by Richard Boyd. - http://plato.stanford.edu/entries/scientific-realism/
What Is Science? - Overview of the theory of science from an anthroposophical point of view. - http://hem.passagen.se/thebee/SCIENCE/Science.htm
WSRC - Critical Realism - An independent site highlighting the development, interrogation, explication, and application of critical realist methods and analyses; features a bibliography, a glossary, and an archive of papers. - http://www.raggedclaws.com/criticalrealism/
Incommensurability Literature - Bibliography on incommensurability and related matters. - http://sun1.rrzn.uni-hannover.de/zeww/inc.conf.litlist.html
Philosophy of Science - Essays on philosophy of science from the Proceedings of the Friesian School, Fourth Series. - http://www.friesian.com/science.htm