Twitter on March 21, 2006, when Dorsey published the first Twitter message at 9:50 p.m. Pacific Standard Time (PST): "just setting up my twttr". Dorsey has explained the origin of the "Twitter" title: ...we came across the word 'twitter', and it was just perfect. The definition was 'a short burst of inconsequential information,' and 'chirps from birds'. And that's exactly what the product was. The first Twitter prototype, developed by Dorsey and contractor Florian Weber, was used as an internal service for Odeo employees and the full version was introduced publicly on July 15, 2006. In October 2006, Biz Stone, Evan
Ken Dorsey Dorsey was sent into the game against the Indianapolis Colts after Derek Anderson was injured; he completed two passes, one incomplete, the other an interception. On December 2, Derek Anderson was put on injured reserve ending his season. Dorsey was named the starter for the remainder of the 2008 season. However, Dorsey was injured during the December 21 game that was against the Bengals. Fourth string quarterback Bruce Gradkowski started in place of Dorsey in week 17 against the Pittsburgh Steelers. Dorsey was released by the Browns on February 9, 2009. For a brief time, Dorsey was the quarterbacks coach