DNS Changer virus:

• Don't Lose the Internet in July! FBI Repeats DNSChanger Warning [PC Magazine, 4/21/2012]
• Avoid Internet Doomsday: Check for DNSChanger Malware Now [PC Magazine, 3/7/2012]
• DNS Changer Check-Up - red background means your computer is infected, green means it's not

Windows Update - Got Windows? Get new security patches here!

Ad-Aware - download the anti-spyware program for free

National Do Not Call Registry - sign up online, or call toll-free 1-888-382-1222 from the number you wish to register

AnnualCreditReport.com (or phone 877-322-8228) - obtain a free annual credit report from each of the three credit bureaus

Anonymizer - prevents Web sites from getting info from your browser

CCleaner.com (formerly "Crap Cleaner") - free utility for cleaning up your hard drive

credit freeze - see FinancialPrivacyNow.org [Consumers Union]

DMAchoice - the Direct Marketing Association's page for opting out of junk mail lists and telemarketing lists

Dr. Solomon's Anti-Virus Online

Electronic Frontier Foundation

ESET Smart Security - anti-virus software

Evidence Eliminator - "What evidence is on your hard drive?"

Federal Trade Commission: Privacy Initiatives

FinancialPrivacyNow.org - use this Consumers Union site to order a credit freeze, which prevents identity thieves from opening new accounts in your name

homepage hijack virus - see: Computing.net - info about the homepage hijack virus

How to Interpret E-Mail Headers - anti-spam info from EarthLink

Internet Privacy Coalition - supports "widespread public availability of strong encryption"

LoJack for Laptops - track your stolen laptop (or desktop) computer!

Mail Washer - free spam-blocking software

McAfee - anti-virus software

Norton - see: Symantic Corporation (makers of Norton anti-virus software)

Open Door Networks - firewall for Macs

OptOutPrescreen.com - get off mailing lists for pre-approved credit card offers (or you can call 888-5-OPTOUT [1-888-567-8688])

PC Tools - antivirus and firewall software

Peacefire - all about filtering and monitoring s/w, includes "How to disable your blocking software"

people search engines (privacy issues):

• People Search Engines - They Know Your Dark Secrets - IT World article
• Online Stalking Made Easy - PC World article
• People Search Engines - Slam the Door on What Info They Can Collect - PC World article

Perfect Passwords - "ultra high security password generator"

Privacy International - a London-based human rights group

security freeze (credit freeze) - see FinancialPrivacyNow.org [Consumers Union]

Shields UP! -- Internet Connection Security Analysis - tests your machine to see if your privacy or data security is at risk

Spyware - It's lurking on your machine (PC Magazine, April 2003)

Symantic Corporation - makers of Norton anti-virus software

Wikipedia: Computer surveillance

World Privacy Forum Top Ten Opt Outs

ZoneAlarm - firewall for PCs (basic version is free)