The Journal of Ayn Rand Studies now has online archives. Here, selfishly (appropriately), is a list of links to my own JARS articles over the past decade:
The Benefits and Hazards of Dialectical Libertarianism (2.2, Spring 2001)
Keeping Context In Context: The Limits of Dialectics (3.2, Spring 2002)
Praxeology: Who Needs It (6.2, Spring 2005)
Reference and Necessity: A Rand-Kripke Synthesis? (7.1, Fall 2005)
Interpreting Platos Dialogues: Aristotle versus Seddon (10.1, Fall 2008)
Most of those were my side of debates with other people, so you should probably go read their side too. Plus lots of other good stuff. Here.