Good question. Easily answered with quick search, though.
Go.com (also known as The Go Network) is a landing page for Disney content, created as a joint venture between Infoseek and Disney Interactive. It is currently operated by Walt Disney Parks, Experiences and Consumer Products, a Division of The Walt Disney Company. It began as a web portal launched by Jeff Gold. Go.com includes content from ABC News which is associated with Disney and is hosted under a .go.com name.