In 2000, GameSpy received additional investment funding from the Ziff Davis publishing division ZDNet.com and from Guillemot Corporation. GameSpy shut down its RadioSpy division, backing away from the online music market which was dominated by peer-to-peer applications such as Napster and Gnutella. In 2001, GameSpy's corporate technology business grew to include software development kits and middleware for video game consoles, such as Sony's PlayStation 2, Sega's Dreamcast and Microsoft's Xbox. In March 2007, IGN and GameSpy Industries merged, and was briefly known as IGN/GameSpy before formalizing their corporate name as IGN Entertainment.