The company launched in 2003 as a "business social network," linking together professionals and students.
In 2009, the company hit 50 million users and it has taken just over 18 months to get another 50 million.
The company says it now adds a new member every second.
As part of the milestone celebration, LinkedIn posted interesting figures about its membership base:
-56 percent of users are from outside the U.S. and growth remains stronger internationally than in the States.
-Brazil had the strongest growth, 428 percent year-over-year. Mexico, India and France followed.
-LinkedIn usage peaks at noon for desktop, 8pm for mobile devices.
-20 percent of users are in "service" sector, 9 percent are in finance and another 9 percent are in tech industry. There are also 1 million teachers.
When the company IPOs later this year, it is expected to fetch $3 billion.
Written by: Andre Yoskowitz @ 24 Mar 2011 0:31
