Marketplace: network where money/transactions flow between two or more sides with distinct groups of users on each side; successful marketplace where supply and demand are attracted to the same place
Platform: network of users and developers; multi-sided feedback loop between those users, developers, and platform itself creates flywheel effect increasing value for each of those groups. Network that can be programmed, customized, and extended by outside users. (often meets needs and creates niches not defined by original developers at the outset... See more