Earlier this week, the Los Angeles Times pulled the plug on an experiment that allowed readers to re-write the newspaper's editorials. The Times used wiki technology -- software that lets users make and edit a Web document collaboratively.

One thousand people signed up for the LA Times "wikitorial" but the paper ended the experiment after a couple of days because people posted obscene words and pictures.

Advocates of Internet-based citizen journalism are worried that the aborted project could set the movement back.

Former mainstream journalist Jeff Jarvis blogs at Buzzmachine. He says the Times' heart was in the right place.

Elsewhere:

Iran targets dissent on Internet (BBC)

Universities battle for biotech supremacy (USAT)

Zombie computers attack (New York Times)

Online pornographers dodge bullet (Wired News)