As it get closer to an initial public offering, LinkedIn today announced reaching the nice round number of 100 million users. In a
blog post, LinkedIn CEO Jeff Weiner said the professional network is adding members at the rate of 1 million a week, "the
equivalent of a professional joining the site at faster than one member per second," he wrote. Weiner also noted the site is used in 200 countries, with half more than half its users coming from
outside the U.S. LinkedIn filed for an IPO in January, reporting revenue of $161 million for the first nine months of 2011, and net income of $10 million.
