Evan Williams (Internet entrepreneur) as co-founder, board member, and investor. In October 2008, Williams became CEO of Twitter, displacing Jack Dorsey, who became chairman of the board. By February 2009, Compete.com ranked Twitter the third most-used social network, based on their count of 6 million unique monthly visitors and 55 million monthly visits. As of February 2013, Twitter had 200 million registered users. It gets 300,000 new users a day and, as of August 2015, was ranked twelfth in the world. It receives more than 300 million unique visitors and more than five billion people in traffic a month. 75% of its traffic comes
DeDe Dorsey and offense in successive seasons. In less than three seasons as a defensive player, Dorsey had seven career interceptions, returning four for touchdowns, and blocked seven field goals and nine punts. Dorsey signed with the Cincinnati Bengals as an undrafted free agent following the 2006 NFL Draft. He was waived prior to the start of the 2006 season. Dorsey was claimed off waivers by the Indianapolis Colts on September 3, 2006. He played in Super Bowl XLI for the Colts, helping them win, 29–17, against the Chicago Bears. The Colts waived Dorsey on September 1, 2007. On September 25, 2007,