Are you being duped by a Twitter robot?

If you use Twitter's trending topics list to keep up with breaking news, read this Wall Street Journal story about the brisk trade in phony Twitter accounts: "The fake accounts remain a cloud over Twitter Inc. in the wake of its successful initial public offering. 'Twitter is where many people get news,' says Sherry Turkle, director of the MIT Initiative on Technology and Self. 'If what is trending on Twitter is being faked by robots, people need to know that.'"