This Salon.com article looks at David Horowitz, who is developing a website that "proclaims insidious links between latte liberals and murderous Islamists."

An excerpt (free with a "day pass"):

David Horowitz has lived a rich, and contradictory, life. He once contributed to seminal leftist magazine Ramparts and hired for the Black Panthers, but then bitterly split with his leftist friends and reinvented himself as a conservative who may be the leading scourge of left-leaning professors nationwide. His crusade to make liberal "indoctrination" a statutory offense has seized the backing of Republican lawmakers and the imaginations of campus followers. Recently, Horowitz launched a new Web site, DiscoverTheNetwork.org, to catalog and expose his enemies on the left.

When I called to interview him for Salon, listed on his site as an "apparatchik far-left" publication practically in league with Islamists, the former Salon columnist was strangely eager to appease me. Famous for breathing fire in public before admiring college Republicans, he scampered when I confronted him about his site's claims, even promising to rewrite some of them.

Purportedly a serious counterbalance to liberal sites that track conservatives, Horowitz's online "Guide to the Political Left" lays out what he considers the extensive connections between liberals and terrorists. Its controversial picture gallery of "leftists" runs the gamut from movie critic Roger Ebert and Omar Abdel Rahman, the mastermind of the 1993 World Trade Center bombing, to crushed Holy Land protester Rachel Corrie and even Sen. John Kerry.

You just can't separate Ebert from a terrorist like the blind sheik Rahman, Horowitz told me. Chalk it up to the limits of presenting information on a two-dimensional computer screen. "It's a limitation of -- what? Of language? The human mind?" mused Horowitz. "The two-dimensional, three-dimensional, four-dimensional universe?"

The human minds with limitations, of course, belong to his critics. But Horowitz's latest venture has his critics asking if the right-wing provocateur has finally flipped in his long-running battle with the left.