Last week, the New York Times (via Yahoo) posted an article on five ways to keep safe online. They have blurbs and excerpts on each one, but here they are with my summaries.
With regards to Mac users, I'm having a little fun. I remember all those Mac-vs-PC commercials where the Mac guy implies that PCs are prone to viruses and malware with the subtle suggestion that Macs are not. Regardless of whether or not Macs are prone to these things, the viewer does come away with inference.