When you hear the word "domain", you probably think of the address in your email or on your computer. But a domain is much more than just a web address. It's a key component of any website that identifies your business.
A domain name can be either a company's own name or a word or phrase associated with the company. Some companies choose a simple but unique phrase, such as "www.yourcompanyname.com"; others use one or two words to create a memorable brand, such as "www.yourcompanyname.biz" or "www.yourcompanyname.org." The second choice is considered more professional.