Biz school studies the power of passion, early social networking
                                
                                
                                    (Newser) -
                                    Barry Barnes saw the Grateful Dead 194 times during the band's 30-year-long run, which ended when Jerry Garcia died, in 1995. But his passion hasn't died, and Barnes, now a business school professor, uses the Dead as a case study in what he calls "strategic improvisation" and very early...