Popular in: Russia
A predecessor of both MySpace and Blogger, the social networking and blogging service LiveJournal was founded in 1999 by a University of Washington computer science student. The site quickly exploded in popularity due to its ease of use, and the "friending" function that soon became an inherent feature of social networking sites.
Though it's fallen out of favor in the United States today, LiveJournal boasts almost 2 million active users worldwide (plus almost 33 million accounts that are no longer active) but the site remains wildly popular in Russia and Russian diaspora communities. With over 2 million users, LiveJournal is by far the most popular blogging platform in Russia. It was sold to Russian internet company SUP in 2009 and now -- except for a handful of U.S. employees -- operates from Moscow.
President Dmitry Medvedev is an avid LiveJournal user. So is leading dissident Alexey Navalny. Last year, the site suffered a massive denial-of-service attack that many believe was targeted at Navalny and other opposition leaders who use the site.