I just came across a website that promises free Antivirus software. While technically this is correct, in essence what you get is a 6-month trial to Norton Anti-Virus. Don’t get me wrong, Norton is a great product (here are some reviews), but a 6-month trial is usually the sort of thing that gets you hooked on a product, then forces you to pay a yearly subscription.
Bottom line is, watch out when someone offers you a free lunch. While there are free anti-virus products out there (AVG for example), it’s quite easy for someone to offer you something that appears free, but is not really so. Always make sure to read the fine print!