The Hollywood Reporter has added five new staffers to its editorial and social media teams, the entertainment industry trade announced this week. Peter Flax is joining HR as features editor; he previously served as editor-in-chief of Bicycling Magazine. Dan Fienberg, previously executive editor at HitFix.com, is joining as a TV critic. Ryan Parker, previously a reporter for The Los Angeles Times, is joining as staff editor. Mia Galuppo, formerly a contributor to HelloGiggles, is joining as a staff writer focused on Film. And Jen Jiles, formerly at E! Entertainment, is joining as social media manager.