Zack Seward

"For-profit, for good" is the mantra of a handful of startups trying to make Philadelphia a social enterprise hub. One of those companies is a bike-delivery laundry service that's now expanding.

Joysticks in hand, participants played what was perhaps the world's biggest video game on the side of the 29-story Cira Centre in Philadelphia. The interactive light display kicked off a week of events for the annual celebration of the local tech scene.

There's no better way to build a team than to start a band, say the executives of one telecom firm who met while playing music. Soon, their employees will play against each other in a companywide battle of the bands. The only rule is they have to pick an instrument they don't already know how to play.