March 27, 2009 4:38 pm Tweet, Tweet, Tweet — Analyzing the Twitter Boom Twitter is all the rage as celebrities and average joes alike share with the world what they’re doing in 140 words or less. For more stories like this check out NBC Philadelphia’s Twitter page. US & World Videos 1:30 Protests calling for ceasefire continue at Penn 6:33 Family affair: Former Eagle and new Eagle Jeremiah Trotter and Jeremiah Trotter Jr. speak out 0:20 Teen girl shot in Southwest Philly, suspect in custody 0:27 FBI inspects American Airlines plane at PHL after bomb threat 1:40 Penn officials urging pro-Palestinian protesters to pack up and leave campus
