Founded as a division of
Microsoft in 1996, Expedia was
spun off in 1999, and was later purchased by TicketMaster in 2001
(TicketMaster changed its name to USA Networks in 2001 and then
InterActiveCorp in 2003
). IAC spun off its travel group of businesses under the Expedia, Inc. name in August 2005, including Expedia, Expedia Corporate Travel (now Egencia),
TripAdvisor,
Classic Vacations, eLong,
Hotels.com, and
Hotwire.com.