Jay Penske, the youngest son of auto racing legend Roger Penske, has become one of L.A.’s stealthiest media moguls. Penske Media Corp. is a force outside the studio bubble as well, owning music publications Billboard, Rolling Stone and Vibe, as well as ARTnews, Artforum, Women’s Wear Daily and Sportico. Critics contend such financial arrangements inevitably result in favorable treatment of …
