This plugin is designed to perform some simple class-based widget framework in wordpress. Using it you can write widget classes (or extend some) in object oriented manner. 
There is a simple widget API, defining basic interfaces and classes. AJAX is core-embedded. After writing your class, you must install it (this is done for the purpose of writing custom database data needed for widget functionality) in order to define widgets of this class. After defining widgets you can place them directly to your page using wordpress shortcodes or special plugin function. You can specify skin (special markup) for each widget placement. You can also define containers (or sidebars) and place widgets into them. Containers are also placed on pages using shortcodes or function call.

Mind3doM RyeBread Widgets

Allows to extend your blog with class-based skinnable ajax-featured widgets, optionally arranged in page areas (containers).

Vladimir Prelovac

Live Blogroll will make your blogroll livelier. It will show a number of ‘recent posts’ for each link in your Blogroll using Ajax.
When the user hovers the mouse above the link, RSS feed from the site is automatically discovered and a number of recent posts is shown dynamically in a box.
Live BlogRoll uses internal caching for feed discovery and WordPress caching for RSS feeds to make sure everything is smooth for the user.
The looks of the hover box are fully customizable with CSS, and the position is editable in the options.
Plugin by <a href="http://www.prelovac.com/vladimir" rel="nofollow ugc">Vladimir Prelovac</a>.
<h3>License</h3>
This file is part of Live Blogroll.
Category Search is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
Category Search is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with Category Search. If not, see <a href="http://www.gnu.org/licenses/" rel="nofollow ugc">http://www.gnu.org/licenses/</a>.

Live Blogroll

Shows a number of 'recent posts' for each link in your Blogroll in a popup box, using Ajax.

Mind3doM RyeBread Widgets vs Live Blogroll