Everyone knows that decent anti-virus protection is a staple of any Windows-based machine, and if you don't, then you should do now. Because it is. But sometimes people fall into the trap of claiming anti-virus is too expensive, despite the abundance of free basic packages from various vendors. Well, now there's no excuse. At least not for the next 6 months, as Panda Anti-Virus is offering a free 6-month license for its innovative cloud anti-virus product for anyone with Facebook and a mouse for clicking 'Like'.   What is Panda Cloud Anti-Virus Well as the title ...