MC Hammer Teaches 'Tweeting'

Stop, Twitter Time

Hammer
Hammer
Hammer
Hammer
Hammer
Hammer
Hammer
Hammer
Hammer
Hammer
Hammer
Hammer
Harvard Business School professor Andrew McAfee says, "Twitter has uncovered a need that most of us didn't even know that we had to talk about ourselves, to broadcast our lives and our work in a very low-cost overhead, but in a very public way." (Courtesy Evgenia Eliseeva )
ABC News on Facebook