http://www.techwr-l.com/techwhirl/

TECHWR-L (that's "tech-whirl") is the Internet-based community and resource for technical communicators worldwide. The TECHWR-L discussion list has more than 5,000 direct subscribers and an estimated daily readership of more than 10,000 people worldwide. The TECHWR-L site serves more than two million page views per month and provides a unique combination of articles, features, and services unrivaled by any other Internet-based technical writing resource.