Intrusion detection focus area; designed to assist discussion on security related topics, and provides a database of security knowledge and resources. It also hosts the BUGTRAQ mailing list.
COAST Intrusion Detection Hostlist
Clearinghouse listing of many of the Internet resources associated with intrusion detection and prevention systems. Includes inventories of commercial products, research projects, and other IDS-centric material.
Internet Storm Center
Operated by the SANS Institute, the ISC provides a user-supported infrastructure for intrusion detection systems to share information about ongoing attacks that span countries, networks, and administrative boundaries.
LinuxSecurity IDS Resources
Collection of IDS-related resources made available by the linuxsecurity.com community.
Security Resources for Windows Network Administrators
Provides books, articles, software and other information on penetration testing and other security issues. Geared toward Windows NT/2000/XP Network Administrators.
Talisker Security Wizardry
Large index of computer security resources, including a glossary of Intrusion Detection and Prevention systems.
Intrusion Reporting and Response. Users forward firewall logs that are aggregated and analysed to identify incidents that are reported to the responsible party.