You can sign up for BUGTRAQ, Development Vulnerabilites, or Incident Reports at
www.securityfocus.comSince any one of the above mailing lists can drop sometimes up to 80 messages a day in you in-box, checking the account where you recieve these
security newsletters on a regular basis is
wise.
Often times
government sysadmins and foreign security specialists contribute. This one dude's last name is Zmolky. Wouldn't that be a kick butt name?