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If you have made a resolution to find a new job, according to Netscape you better start thinking about how you are going to demonstrate one particular and extremely valuable skill. The top trait employers want that can't easily be found on your resume or even in a typical one-hour job interview is: Do you play well with others? Head hunters and human resource managers call it “the likeability factor.”   Rackspace Managed Hosting is a 1,900-employee computer server hosting company in San Antonio, Texas, that is downright picky about whom they employ. They've learned the hard way that difficult, obstinate and fractious employees cost them big bucks in time and productivity.  A company spokesman says their interview technique is to drill down past fake pleasantness. Workplace bullies need not apply. (Netscape)