Lifehacker: Five best antivirus apps

http://lifehacker.com/395046/five-best-antivirus-applications
"The internet is a glorious and exciting world, but unless you're properly protected with a good antivirus application, it can also be a dangerous one. We've come a long way since the days of Norton, with handfuls of excellent freeware software that can keep your computer safe from malware just as well as their bloated, more expensive counterparts. On Tuesday we asked you to share your favorite antivirus application, and today we're rounding up the five most popular answers. Hit the jump for an overview of the five best antivirus applications and to cast your ballot for the best antivirus app of the group."