Peter Steiner published his infamous “On the Internet, nobody knows you’re a dog” cartoon in 1993. This mental image for me was just a joke – until recently. For the most part, you know the people who email you, link up with on Facebook or LinkedIn. Those you don’t recognize, you just write off as spam or a mistake. Today, Twitter is buzzing with an expose penned by John C. Dvorak, of PC Mag editorial ...
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