Ludwik Fleck: An Answer to the Crisis of Modern Medicine in Interwar Germany?: Abstract of a 2002 paper by Christian Bonah, with full text available as a PDF file. Considers Fleck's 1935 work Genesis and Development of a Scientific Fact in the bioethical context of the time.
Polish Philosophy Pages: Ludwik Fleck: Brief biography, bibliography, and several essays on key terms in Fleck's thought.
Popular Science and the Thought-Style of Ludwik Fleck: Abstract of a paper by Kaj Johansson, noting the function which Fleck ascribed to popular science.
Wikipedia: Ludwik Fleck: Biography and ideas of the Polish thinker in the free encyclopedia.