Change permalinks for standard or custom post types while using any domain name you want.

Allows Domain Mapping for WordPress MU (sub-domain and sub-directory installations).

DomainTools whois plugin shows whois data for domains found in blog articles and links them to whois.domaintools.com.

With hieWPwhois Plugin you can query domain status and whois (DomainavailibilityCHecK).

Jazzchat allows you to connect users and agents within domains, using chat, audio and video.

For more information and support, check out: http://www.wpsos.io/wordpress-plugin-add-or-remove-www/

Allows multiple domains to be pointed at a single WordPress install with customization for each.

This plugin allows you to have multiple domains in a single Wordpress installation and enables custom redirects for each domain.

The WordPress Multi Networks Setup plugin allows site owners to create multiple networks based on your WordPress 3.0 network installation.

Adds a Networks panel for network admins to create and manage multiple Networks from one WordPress installation.

Quick Whois Plugin Shows Whois information of the provided domain name. You can do this using Widget/Shortcode.

WangGuard Limited Registration Domain Add-On is an Add-on for WangGuard plugin. You can allow or disallow a list of domains.

Allows one WordPress installation to be resolved and browsed at multiple domains.

This plugin allows you to have multiple domains in a single Wordpress installation and enables custom frontpage or redirect for each of them. Can accept any domain, autoconfigure new domains or just accept listed domains. Plugin won't do any configuration on hosting or domain level, so you should take care of that - point domain to the same webroot and configure webserver to accept that.