Holocaust / Shoah deniers on the Left

I've been noticing that a lot of recent Holocaust denial in postings on "Crisscross News":
http://www.crisscross.com/
are being accompanied by a presumed "lack of evidence" of Saddam Hussein's WMDs and critiques of the U.S. Republican Party.
Three posters have been especially conspicuous in this:

sabiwabi: http://www.crisscross.com/us/bbs/msg/sabiwabi

sushi: http://www.crisscross.com/us/bbs/msg/sushi

MPLS: http://www.crisscross.com/jp/bbs/msg/MPLS

A cursory Google search yields this:

Holocaust Denial, indian and Jewish (by L. Proyect)
In recent weeks I have been in a battle with "left-wing" holocaust deniers on the Internet ... David Stannard, a Jew and author of "American Holocaust", ...
http://www.columbia.edu/~lnp3/ mydocs/jewish/holocaust_denial.htm

Alas, a blog » Blog Archive » Chomsky and Holocaust Denial
The primary evidence linking Chomsky to Holocaust denial is that he once wrote an ... Left Wing Liberal Commie Agitator · Progressive Indian-American Woman ...
http://www.amptoons.com/blog/archives/ 2006/01/16/chomsky-and-holocaust-denial/

and this looks very interesting:

The Academic Left and Holocaust Denial
The Academic Left and Holocaust Denial. By Brian Carnell. Thursday, March 2, 2000. A story I've been trying to follow very closely over the past few weeks ...
http://www.libertysearch.com/articles/2000/000012.html

I only became aware of this late last year and I expect to post more on this as I learn more/more info becomes available...