Where can I find web sites related to security?

General information on security issues, inckudes antivrus vendors

http://www.securityfocus.com/

Not sure - written in Spanish

http://www.hispasec.com/

Very useful site gives inforamtion on various aspects of security

http://www.packetstormsecurity.org/

Security magazine

http://www.scmagazine.com/home/index.cfm

Spyware

http://www.spywareinfo.com/

http://www.spywareinfo.com/~merijn/downloads.html

Bugtrac

http://www.ntbugtraq.com/default.asp?pid=38&sid=1

Centre for Internet security

http://www.cert.org/

http://antivirus.about.com/

McAfee antivrus

http://nai.com/us/index.asp

General Security Links

http://www.securelyspeaking.com/modules.php?op=modload&name=Web_Links&file=index

http://csrc.nist.gov/

http://www.us-cert.gov/

http://forums.techguy.org/

Microsoft security web site

http://www.microsoft.com/security/default.mspx

http://www.cotse.com

http://www.insecure.org - home of the NMap network scanner, and all sorts of valuable information

http://www.ethereal.com/ is the homepage of the open source Ethereal network analysis product.

Commercial site, good knowledge base

http://www.4-secure.com/knowledgebase.html

Government site on security

http://www.cesg.gov.uk/indexNS.cfm

List of viruses found - updated monthly

http://www.wildlist.org

http://www.sans.org

http://www.spywarewarrior.com/

http://www.simovits.com/trojans/trojans.html

http://csrc.nist.gov/

I always find the following to be useful when I'm in a hurry:
http://www.yourwindow.to/security-policies/

This is basically a set of security policies for reference. It goes with a glossary here:
http://www.yourwindow.to/information-security/

If you are into the information security standard (ISO 17799), I guess the most useful site for me is the user group:
http://www.17799.com

Although there's recently been launched an open source wiki on this which might prove to be good once it fills out:
http://iso-17799.safemode.org