While many (but not all) users are familiar with the concept of security software, there are more basic ways to protect unwary surfers from phishing sites, botnets, intrusive advertising and other unwanted visitors: DNS services.
Nicholas Carr's essay <em>IT Doesn't Matter</em> in the Harvard Business Review in 2003, and the later book, argued that IT is shifting to a service delivery model comparable to electric utilities. It produced <a href="http://www.computerworld.com/article/2571616/it-management/it-does-so-matter-.html">debate and defensiveness</a> among IT managers over the possibility that they were sliding to irrelevancy. It's a debate that has yet to be settled. But what <em>is</em> clear is that Carr has a talent for raising timely questions, and he has done so again in his latest work <em>The Glass Cage, Automation and Us</em> (W.W. Norton & Co.)