If you are setting up your own Web server, you have to register directly with Network Solutions or one of the other accredited registration organizations. If an Internet service provider (ISP) is hosting your site, it may handle the registration for you. See Network Solutions
Is a Name Already Taken?
To find out if a domain name is taken, two popular domain name registrars are Network Solutions (www.netsol.com) and Go Daddy (www.godaddy.com).