Karl Popper (1902-1994)

The Karl Popper Web: from Dr. Ray Scott Percival and Dr. Barry McMullin, hosted at Dublin City University

The Karl Popper Insitute: "The Karl Popper Institute in Vienna is a nonpolitical, nonprofit association of public utility which in the spirit of humanism, tolerance and the open society, and in cooperation with Sir Karl's students and friends, with academic and non-academic institutions supports scientific research in philosophy of science, theory of knowledge, social and political philosophy and conducts documentary analysis, description and organizing of Popper's archives." Also in German.