Expedia is an online travel agency. It enables users to access a wide range of services. It books airline tickets, hotel reservations, car rentals, cruises, vacation packages, and various attractions and services via the world wide web and telephone travel agents. Its primary web businesses include Expedia.com, Hotels.com, Hotwire.com, andEgencia.com. It launched Tripadvisor in 2011. It also offers services for corporate travel and travel services in Europe and Asia. Expedia also operates internationally with sites in Canada, the United Kingdom, Germany, France, Italy, Spain, the Netherlands, Norway, Sweden, Denmark, Australia, Japan, and China. It is done through its investment in eLong.