TCBarrett

This plugin requires is just the front end javascript library, the following two things to be done in support: 
1. Add the class ‘simpleajaxform’ to your form. 
2. Make sure you have the correct wp_ajax handler hook defined.
It was primarily built as an example for a blog post.

Simple AJAX Form

A simple jQuery javascript library to ajax enable forms.

digitalnature

Light, and at the same time advanced advertisment manager. Provides you the ability to select context conditions for displaying ads, like page location / location index / page or user class.
Note that although the current release is stable, there are features that are not yet implemented, and existing functionality that is very likely to change.
<h3>Thanks</h3>
Thanks goes to <a href="http://digitalnature.eu/themes/mystique/" rel="nofollow ugc">Mystique</a> theme users, which encouraged me to improve 
the original “Ads” module for that theme, and develop this plugin.

Ad Manager

Manage ads on your website trough the WP dashboard.

Simple AJAX Form vs Ad Manager