generic
Top
Level
Domain
I use the full gtld when referring to the "minor" gTLDs and TLD for the major gTLDs, (.com, .net, .org, .info, .biz), but this is an artificial distinction.
Generic Top-Level Domains
* The .aero domain is reserved for members of the air-transport industry and is sponsored by Société Internationale de Télécommunications Aéronautiques (SITA).
* The .biz domain is restricted to businesses and is operated by NeuLevel, Inc.
* The .com domain is operated by VeriSign Global Registry Services.
* The .coop domain is reserved for cooperative associations and is sponsored by Dot Cooperation LLC.
* The .info domain is operated by Afilias Limited.
* The .museum domain is reserved for museums and is sponsored by the Museum Domain Management Association.
* The .name domain is reserved for individuals and is operated by Global Name Registry.
* The .net domain is operated by VeriSign Global Registry Services.
* The .org domain is operated by Public Interest Registry. It is intended to serve the noncommercial community, but all are eligible to register within .org.
* The .pro domain is being established; it will be restricted to credentialed professionals and related entities and is operated by RegistryPro.
** .mobi, for mobile business was recently approved.
*** .xxx, ??for adult content- not sure if this has been approved
Registrations in the domains listed above may be made through dozens of competitive registrars. For a list of the currently operating accredited registrars, go to the InterNIC site. Information about becoming an accredited registrar is available on the ICANN site.
* The .gov domain is reserved exclusively for the United States Government. It is operated by the US General Services Administration.
* The .edu domain is reserved for postsecondary institutions accredited by an agency on the U.S. Department of Education's list of Nationally Recognized Accrediting Agencies and is registered only through Educause.
* The .mil domain is reserved exclusively for the United States Military. It is operated by the US DoD Network Information Center.
* The .int domain is used only for registering organizations established by international treaties between governments. It is operated by the IANA .int Domain Registry.