The Cox Family
Cox Enterprises diversifies business interests which has helped build their massive wealth. Starting as a newspaper publisher in 1898, the company now compromised of Cox Communications that focuses on cable TV and broadband connections and Cox Media Group that controls newspapers, TV, and radio stations. But perhaps the biggest wealth comes from the automotive assets like AutoTrader.com, Kelley Blue Book, and Manheim car auctions. The net worth of the family is a remarkable $41 billion.