Modern Interpretation of Ancient Logics - Scientific articles on formal aspects of Ancient Western and Indian Logic. Papers on modern interpretation of Aristotle's, Leibniz' and ancient Indian logic. - http://logic.glashoff.net
Aristotelian and Modern Logic - Article by Katalin Havas, discussing the nature of progress in logic, and the idea of logic as a perfected discipline. - http://www.ifs.csic.es/sorites/Issue_04/item5.htm
Old Directions in Free Logic - Article by Gyula Klima. An analysis of the controversy over existential import in syllogistic theory, relating it to modern work in Free Logic. - http://www.fordham.edu/gsas/phil/klima/freelog.htm