The period between 2004 and now saw the rise of many digital distribution services on PC, such as Amazon Digital Services, Impulse, GameTap, GameStop, Games for Windows – Live, Origin, Battle.net, Direct2Drive, GOG.com, GamersGate and several more. The offered properties and policies differ significantly between the digital distribution services: e.g. while most of the digital distributors don't allow reselling of bought games, Green Man Gaming allows this.[13]