CERT Coordination Center
Hosted by the Computer Emergency Response Team, this site seeks to increase awareness of Internet security problems and facilitate responses to them. Check here for advisories on security bugs, for information on obtaining patches and workarounds, and for up-to-the-minute bulletins on other security issues.

Cipher
The IEEE Computer Society's newsletter on security and privacy offers news, proceedings of technical conferences, and other links.

IETF Security Handbooks
The Internet Engineering Task Force has produced a series of guides for developing computer security policies and site procedures.

National Computer Security Association
The NCSA acts as a computer-security information clearinghouse for companies and government agencies. The group performs a wide variety of functions, ranging from conference sponsorship to product certification. It also hosts consortia on topics such as viruses, firewalls, and biometrics.

RSA Data Security, Inc.
This site runs the gamut of security issues, discussing Java, e-mail, commerce, and personal security.

The World Wide Web Security FAQ
This document, maintained by author Lincoln D. Stein, answers many questions relating to Web server security and includes a short section on Web security from the end user's perspective.

Newsgroups
Dozens of newsgroups are devoted to security issues, ranging from encryption to viruses. The NIH Computer Security Information site maintains a comprehensive list.

Sites With More Links
When you need something more authoritative and comprehensive than an executive summary, consult a market research company. Here's a list of firms providing research and analysis for a fee. Many provide free summaries on their Web sites as well.
IEEE Cipher: Interesting Links
Library of Congress Internet Security Information
Sirene: Links to Security Standards & Organizations
W3C Security Resources