Step 1: Register your domain
Overview / Brief History:
When you register a domain name information is stored in a database of all the domain names that are registered. The database is maintained by a non profit organisation which requires a fee of about $5 a year.
When register a domain name however you purchase the rights to a domain through a registrar who add on another fee.
Up until a few years ago Network Solutions had a monopoly and was the only registrar and so they were able to charge about $75 a year for a domain name.
Now that there is registrar competition a personal domain name can be had for under $10.
To find a domain registrar you could search google for domain names and you'll get a lot of results.
Once you've found a company that will give you the best deal go through check to see if the desired domain name is available on their site and register it.
Summary:
Go to any domain registrar and sign up for the desired domain name.
here's one potential registrar Note: I'm not endorsing this company