My debate with a Holocaust denier rages on.

Here are some useful links about Holocaust denial.

I am not sure which course to recommend. I am glad I started my discussion with a Holocaust denier before I consulted overviews of the denial phenomenon like Lipstadt's essay (link below) or Shermer's book. It has been fun testing my mettle, so to speak. Others with less experience in history or historical debate might want to try it the other way around. Any non-specialist in the Holocaust, and that includes me, will want to consult resources which actually provide the evidence, of course.

• Denying the Holocaust
  by Debora Lipstadt at the BBC homepage. It is a good overview of the techniques used by deniers and includes a very few good examples of the evidence for the Holocaust.
• The Holocaust History Project, a great resource with translations of key documents.
• The Nizkor Project, another great site with point-for-point debunking of some denier claims, such as the so-called Leuchter Report.

I would also recommend Robert A. Kahn's book Holocaust Denial and the Law for an analysis of the legal issues involved. It helps understand why revisionists can score more points in a courtroom, where legal nuance is more important than scientific epistemology, than in a "real" debate.