I believe this is done to share a cookie across Disney owned companies (ESPN, ABC, Disney) web properties. These are http://abc.go.com http://abc.go.com, http:/

I believe this is done to share a cookie across Disney owned companies (ESPN, ABC, Disney) web properties. These are http://abc.go.com http://abc.go.com, http://espn.go.com http://espn.go.com and http://disney.go.com http://disney.go.com. There are more if you look at the footer of http://go.com http://go.com. This is also practiced by Yahoo for their country domains (i.e. http://www.yahoo.de http://www.yahoo.de turns into http://de.yahoo.com http://de.yahoo.com).