Is your name available?
The first step in purchasing your website domain name is determining if the name is available. Obviously visiting the address you want will show if there is a page there or not. If you find a “Parked Page” that indicates someone owns the name, a visit to WHOIS will tell you who has purchased it. You may be able to purchase the domain name through a bargaining process. Otherwise, pick a new name and search again.
After you determine the name, visit a name reseller, such as GoDaddy, to purchase your name.
For further help, follow this quick tutorial: