the first commercial Internet domain name (.com) was registered under the name Symbolics.com by Symbolics Inc., a computer systems firm in Cambridge, Massachusetts.By 1992 fewer than 15,000 dot.com domains were registered.In December 2009 there were 192 million domain names. A big fraction of them are in the .com TLD, which as of March 15, 2010 had 84 million domain names, including 11.9 million online business and e-commerce sites, 4.3 million entertainment sites, 3.1 million finance related sites, and 1.8 million sports sites.
