Maxaud

(NOTE: Before saying this plugin is broken, please understand what this plugin does. It’s meant for WordPress installs that have multiple NETWORKS.)
Adds the ability to have different themes available to different NETWORKS in a multisite atmoshpere.
WordPress allows for multiple “networks”, these are not to be confused with sites. A network holds blogs underneath of it.
This plugin will allow you to separate themes into different directories so they’re only accessable and viewable to the networks you choose.
The plugin will attempt to create a directory in the /wp-content/ directory named /ms-themes/. If it fails to create it, then you will need to make one.
In the /ms-themes/ directory you will create a folder for each network that you want to allow only certain themes to.
Example: 
If you have a theme named “Snarfer Theme”, and you want to only allow it to be viewable/available to the network (and all sites on that network) with the site_id of 7, you would place the snarfer theme directory in /wp-content/ms-themes/7/
Future releases:
<ul>
<li>Network option to turn off auto creation on/off network directories, index.php files.</li>
<li>Network option to display network ID in the footer of sites so network admins can easily tell what network a site is under.</li>
</ul>

Multisite Themes

Adds the ability to have different themes available to different NETWORKS in a multisite atmoshpere.

Samer Bechara

After testing all of the AJAX plugins in the WordPress repository, I got frustrated. They’re all great, but it seems that they’re like 90% complete. They still need polishing. This is why I decided to create this plugin
How is this plugin different:
<ul>
<li>Three different templates to choose from: Modal login form, Classic login form and popup login form (jQuery UI based)</li>
<li>24 themes to choose from (jQuery UI based) </li>
<li>Fully customizable: Just copy the template you’re using from /templates/ directory in the plugin to the “ultimate_ajax_login” directory in your theme, and modify as you need to.</li>
<li>After a user is logged in, nothing shows up. I found this pretty frustrating with other plugins, there was no way to hide things.</li>
<li>If you need to show anything after a user logs in, just copy the template widget-logged-in.php to your ultimate_ajax_login folder and add whatever you need. You can call any WP function from there.</li>
<li>Has three templates, one an AJAX-based classic login form, and the other is a jQuery UI dialog box (Tested and works on mobile), and the third one is a popmodal dialog box</li>
<li>Blocks the login form whenever a user is being logged in.</li>
<li>Allows you to specify a global login redirect URL in your settings page, which applies to all of your widgets.</li>
<li>Login redirect URL can be overridden on a per-widget basis from the widget options page.</li>
</ul>
Shortcode Usage
Instead of using the widget, you can insert the shortcode inside any post. If you’re a theme developer, you can use it with the do_shortcode() function. Here are the varius option
<ul>
<li>Using with classic template and no redirect url specified: [ultimate_ajax_login] </li>
<li>Using the dialog box template: [ultimate_ajax_login template=’dialog’]</li>
<li>Using the dialog box template and a jquery theme: [ultimate_ajax_login template=’dialog’ theme=’cupertino’]</li>
</ul>

Ultimate AJAX Login

Very flexible and easy to use AJAX Login plugin with redirects, customizable templates...

Multisite Themes vs Ultimate AJAX Login