A GTLD (generic top-level domain name) is the top-level domain name of an Internet address that identifies it generically as associated with a domain class, such as .com (commercial), .net (originally intended for Internet service providers, but now used for many purposes) and .org (for non-profit organizations, industry groups, and others).

.com - operated by VeriSign
.net - operated by VeriSign
.org - operated by Public Interest Registry
.biz - operated by Nothing Personal. Only Business
.info - operated by Afilias
.eu - operated by EURid

__________________
Domainmonster.com Customer Support Team.
Domain Name Registration Information & Resources.