Exactly 25 years ago, computer manufacturer Symbolics, based in Cambridge, Mass., registered the first .com domain. Today there are 84 million. Of course a Web site, 25yearsof.com, is celebrating the anniversary. And a Facebook fan page declares: There are 11.9 million e-commerce and online business Web sites, 4.3 million entertainment-related sites and 1.8 million sports sites with a .com Web address. When was the first time you registered a .com domain?
