You as the business owner and you want build your business you must be sure to be in control of your business name. Trademark and secure that .com as well as all the other domain names available to control your brand name. When purchasing your first domain name you may not be sure of what domain extension to use and what are the benefits to each. A top level domain is important for a new website and those niche extensions can help you to find the right client base.
It is always recommeded to go for the .com. But, if your business is set in stone and your just now looking for a business domain name your .com is probably taken. The .com version of the domain name will get more traffic as it is the automatic extension people assume but if you choose the right niche domain you can build a hearty following while working on getting your .com. 
The most popular domain extensions are .com .net .org .edu and then the location based domains like .us .co.uk and .de and each have their niche they are best suited for.
.com is the most commonly used top-level domain extension on the Internet. Many others exist, however. These other six TLDs were part of the original Internet specifications for domain extensions:
- .edu
- .gov
- .int
- .mil
- .net
- .org
In recent years, many new TLDs have been deployed on the Internet. Some of these are intended for broad use worldwide, while others
are designed to serve special interest groups. Though not as popular as the original TLDs listed above, you may also encounter some of these newer domain extensions when browsing the Web:
- .biz
- .info
- .jobs
- .mobi
- .name
- .tel
The ICANN organization ultimately oversees the process of managing Internet domains including new TLD extensions.
About Country Domain Extensions
Besides the generic TLDs listed above, the Internet also maintains domain extensions for each country to help organize Web sites within each nation. These extensions are named according to worldwide standard two-letter country codes similar to those used by the postal system. Examples of country code TLDs include:
- .br (Brazil)
- .ca (Canada)
- .cn (mainland China)
- .fr (France)
- .in (India)
- .jp (Japan)
- .ru (Russian Federation)
- …… many more