clipped from www.time.com Time.com Is Wis.dm Your Next Online Obsession? Do bald people need shampoo? Good question. When Yuchen Long, 14, posted this question on the beta version of a new site called wis.dm on Monday, she got 63 answers in less than three hours, but no clear consensus: while 77% of respondents said no, 23% clicked yes. All those votes made Long's query one of the most popular on this new breed of social networking site that aims to bring people together based not on their school (as in Facebook), sexy pictures (MySpace) or job (LinkedIn), but rather on their own sense of humor and knack for keeping virtual conversations flowing. Like the most addictive twitch video game, it's frighteningly easy to get sucked in for hours as you scramble to dream up witty questions, see who has answered them, scan their queries, answer the good ones, then circle back to your own list to see who has posted comments while you were away.