National Institute of Standards and Technology's   Computer Security Resource Clearinghouse has the ICAT computer vulnerabilities Database

Computer Security Institute
CERT's advisories
.edu hacking style
SANS
National Security Agency's     Security Recommendation Guides
Naval Surface Warfare Center's     Information Assurance Office
Navy IA page


National Institute of Standards and Technology's     Computer Security Division


The Honetnet Project
Honetd
Honeyd for Windows
Tiny Honeypot"
LaBrea Tarpit


Security focus's   Library and Microsoft information
CIsecurity.org


Network Security Requirements for Devices Implementing (draft-jones-netsec-reqs-00 )


http://www.snort.org/ The Open Source Network Intrusion Detection System


cisco's "The Science of Intrusion Detection System"


Robert Graham's Network Intrusion Detection Systems FAQ


DShield


Stop DOS attacks by looking at router backscatter


SORM - Russian Internet Wiretapping Project