Twitter Jack Dorsey Evan Williams Biz Stone

Twitter: Evan Williams Early Years (3:17); Twitter: Evan Williams and Blogger (2:43); Twitter: Stone and Williams (3:31); Twitter: Dorsey, Stone, and Williams (4:08); Twitter: Launch and First Year (2:56); Twitter: Subscriber Growth (2:25); Twitter: Business Strategy (3:13); Credits: Twitter Jack Dorsey Evan Williams Biz Stone (0:38);