Expedia is a well-known travel website in the United States and the world's largest online travel company. Currently, TripAdvisor, the world's largest travel community, is a brand of Expedia. The website mainly provides users with information services such as flight reservations, car rental companies, hotels in more than 3,000 locations around the world, and super-preferential room rates. Travelers can obtain real-time and accurate hotel quotes in the shortest possible time. After acquiring eLong, the company officially entered the Chinese market.