After you have shortlisted the domain name list, you need to go to a domain name registrar, check the availability and register the name out of available options.
Till 1998 Network Solutions was the only company that was authorized to register the domain name. After it lost its monopoly many a companies have risen. At present times there is plethora of domain name registrars available. While competition is good for the prices, it also adds to the confusion. When you look for a domain name registrar, you should keep following in mind: