SPOTLIGHT: What's your favorite social network?

The Department of Defense has conducted a poll to find what social networking sites are used by its employees. The poll found that Facebook was the clear winner, with 84.6 percent of those responding by saying that had become friends through the ever-popular social network. Email was the second most used form of Internet communication with 79.5 percent, followed by YouTube at 51.9 percent and LinkedIn at 47.1 percent. DoD poll