An American student in Egypt used Twitter to send a single-word message, "arrested," through his cell phone. He was rescued. A hate message circling in a social network in Sydney led to a 2-day riot against the city’s Lebanese community. What are the promises and perils of Twitter, Facebook, and other social networking media?
- Mark Pesce, an early pioneer in virtual reality, writer, researcher and teacher; author of "The Human Network: Sharing, Knowledge and Power in the 21st Century"
- Barbara 8/11/08: "I could see my grandson listening to WPR, but not wanting his teenage friends and acquaintances to know. He would most likely prefer that they only knew he listened to music on his iPod."