This domain can be useful if your business operates out of America, or you want to appeal to the American market.
The .us domain is available to all U.S. citizens and government agencies, as well as any foreign business or organization with a presence in the United States.
With a .us domain, you can:
⦁    Create a site dedicated to the interests of your US site visitors and customers
⦁    Add a new site with an easy-to-remember extension
⦁    Expand your current site with US-only content and features
⦁    Establish your business presence in the US
⦁    Protect your trademark in the US
⦁    Receive a listing in the US Directory