Hotels.com was started in 1991 but at that time it was called Hotel Reservation Network (HRN) which was founded by Robert Diener and David Litman, two American men providing hotel reservation with in the United States via a toll free phone number. In year 2001 the company was sold to group called USA Networks Inc, they also had the controlling share in Expedia which is one of the largest online booking company for travel. Later in 2002 the name of the company was changed to Hotels.com after purchasing the domain name for around $11m, they also launched the offline phone version for booking hotels which was 1-800-2-Hotels. They have expanded at a very fast rate since then internationally with more than 29 websites within two years. Currently there are 85 websites all around the world in more than 30 languages, listing places in around 19,000 locations with above 320,000 hotels. All the websites which were launched in 2002 covered these areas Japan, China, Europe, Australia, North, South and Central America, Middle East, Pacific Rim and South Asia. For offline booking they have a multilingual call center which serves all the calls and is toll-free form some countries while some calls are paid.
So now you have thousands of hotels to select from in above 200 countries for you trip. You may also read reviews from other customers to help make your mind about a specific location and find the best deal. You can also avail Price Match Guarantee if you see anyone else with a lower price tag.