Steveorevo

Domain Theme allows you to specify more then one domain name with your WordPress installation and optionally associate a specific theme for each domain. This enables you to present your site under multiple domain names. (i.e. www.mypersonalblog.com and www.myprofessionalblog.com). A specific theme template can be assigned to a specific domain. For instance, you can use this plugin for a personal blog that has a casual theme under one domain and and present the same data under a corporate theme that omits select categories (i.e. family photos, etc.). You will need to modify your DNS settings to point your domain name(s) to the same server to make this happen.
Known Issues:
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Upgrade users from WordPress 2.6 to WordPress 2.6.1 who used version 1.2 may have incompatible domain data. Please delete and recreate your domain list.
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All-In-One SEO users should delete their “Home title” setting otherwise it will overwrite the blog title settings in Domain Theme.
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Please note that accessing wp-admin pages from any other domain name then your primary domain specified in ‘General Settings’ will cause the administration panel to report the ‘themed’ settings. Just remember to access your ‘General Settings’, ‘Presentation’, and ‘Domain Theme’ admin pages under your primary domain name if you want to make such changes.
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Users before version 2.5 will have a minor UI issue on the Domain Theme control panel’s ‘delete all’ checkbox column. It will not check off all listed items.
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The first item in the Domain Theme list cannot be deleted as it is the settings you have for your primary domain taken from the ‘General Settings’ and ‘Presentation-Theme’ page. Clicking it to edit will simply transfer you to the ‘General Settings’ page. This is on purpose.
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Some users may have issues with their server variables SERVER_NAME versus HTTP_HOST. Simply uncomment the first line of code in the plugin if your additional domain names do not appear to work. See the comment on the first line of code.
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Domain Theme

Domain Theme allows you to specify more then one domain name with your WordPress installation and assign individual themes to each one.

shelkie

Manage multiple blogs with a single standard WordPress installation. Each may have its own theme and domain while sharing users and administration.
Handy for situations where multiple blogs or domains are required, but WordPress MU seems like overkill. MiniMU adds this functionality without added complexity or administration headaches.
By associating a WordPress category with each of your domains, you’re able to control where your posts and pages appear. Have some posts and pages show up on a single domain, and others be visible on all domains. Simply assign the appropriate categories to your posts and pages to control where they appear.
You are able to select a different theme for each MiniMU domain if so desired. Additionally, you’re able to change the Blog title and Tagline for each. Often, it’s desirable to include other bits of content that vary by domain. MiniMU allows you to create custom “variables”, and assign unique content for each domain. These bits of custom content may be plain text or HTML.

MiniMU

Manage multiple blogs with a single standard WordPress installation. Each may have its own theme and domain while sharing users and administration.

Domain Theme vs MiniMU