Nielsen Business Media today announced former TelevisionWeek and TVWeek.com Managing Editor Melissa Grego has been named Editor of HollywoodReporter.com. She'll oversee all of the paper’s online content and initiatives and report to Scott McKenzie, who was recently appointed vp, Editorial Director for Nielsen Business Media’s digital media group. At TVWeek, Grego penned the blog Mel’s Diner and hosted weekly podcasts.