LiveRail hired Brian Kane as chief operating officer.

The Weather Channel companies hired Jennifer Anderson Gragg as vice president of brand strategy and marketing. She most recently served as vice president of brand strategy at Turner Sports.

Harvest has signed director Jason Smith for U.S. representation.

MediaCom named Stephanie Fierman as its first global chief marketing officer.

Initiative named Scott Marsden as senior vice president, director digital. Most recently, Marsden served as vice president, marketing director for True Action Network.

Kevin Arrix joined Viggle as chief revenue officer.

Jason Koenigsknecht has been named vice president of national sales for Jumpstart Automotive Group.

OpenX Technologies named Jason C. White as general manager, publisher business - west.

Commercial and music video production company MTh (Motion Theory) has signed with Barrie Isaacson Management for east coast representation.