CERT-Home Computer Security
The essentials of protecting your home computer. The CERT Coordination Center (CERT/CC) is a federally funded research and development center at Carnegie Mellon University in Pittsburgh, Pennsylvania. CERT responds to security incidents and analyze product vulnerabilities.
Website : http://www.cert.org/homeusers/HomeComputerSecurity/

  Google Directory -- Computers -- Security
This is Google's section for security issues dealing with computers. Everything you need from Firewalls to software and consumer information.
http://directory.google.com/Top/Computers/Security/

  Stay Safe Online
Securing your personal computer plays a crucial role in protecting our nation's Internet infrastructure. This web site is designed to give you the information needed to secure your home or small business computer.
http://www.staysafeonline.info/

  Symantec - Security Response
Find information about the latest virus threats and the best protection against them.
http://securityresponse.symantec.com/

  Symantec Norton Firewall and Antivirus
Symantec Norton is one of the leading companies in computer security. Use the links below to learn about their firewall (1st link below) and antivirus (2nd link below) software.
http://www.symantec.com/sabu/nis/npf/