The problem with Twitter, if it's a problem, is that the only thing people can put in about themselves is a few short words and a URL. At least on Facebook you can add several URLs, a professional history, even publish your email address. Not on Twitter. What Twitter could use is a better 'whois' style look-up which replaces the frantic Googling you have to do to find anything more about a Twitter user. New startup Qwerly, now launched into Alpha, is