Motley Fool: Ask investors or gamers to name the biggest video game publishers in America, and they’ll probably mention Activision Blizzard and Electronic Arts. Fewer people would likely mention Time Warner’s Warner Bros. Interactive Entertainment. Yet WB Interactive actually became the fastest growing video game publisher in America last quarter, and that growth probably won’t stall out anytime soon. Last quarter, WB Interactive’s revenues rose 135 percent annually to $727 million, which accounted for nearly 10 percent of Time Warner’s top line.