National Infrastructure Protection Center - CyberNotes is published every two weeks by the National Infrastructure Protection Center (NIPC). Its mission is to support security and information system professionals with timely information on cyber vulnerabilities, hacker exploit scripts, hacker trends, virus information, and other critical infrastructure-related best practices.

CERT Coordination Center - Security advisories, tools, reporting.

Bugtraq Mailing List Archives - Archives of security-related bug reports and fixes

Computer Security Information - Security e-mail lists, FAQs, news groups, software, organizations, and advisories.

LIST - Security research, tools, links to many security sites.

The World Wide Web Security FAQ - Web security information, known bugs.

Forum of Incident Response and Security Teams - Workshops, conferences.

College and University Information Security Professionals - Information, links to other university sites.

EDUCAUSE Task Force on System Security

Computer Security Institute - Workshops, conferences, information.

Computer Operations, Audit, and Security Technology - Security research, information.