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
Sidney Dorsey was found guilty of the murder of two adult men. Dorsey, as an Atlanta homicide detective, supervised the first search of Williams' home in 1981. Sidney Dorsey Sidney Dorsey (born February 23, 1940, in Atlanta, Georgia) served as sheriff of DeKalb County, Georgia from 1996 to 2000. Dorsey was the first African-American to serve as sheriff of DeKalb County, and was married to Atlanta city councilwoman Sherry Dorsey (1954–2006). When he was defeated in a 2000 runoff by challenger Derwin Brown, he arranged the murder of Brown. On July 10, 2002, Dorsey was convicted of ordering Brown's assassination in order