inconver

You can add new sidebars in the admin panel and edit them.
You can add new types of widgets and edit them. 
Also, you can add custom fields for new types of widgets. 
And you can create a unique template for each new type of widget.
Video tutorial: <a href="http://inconver.com/wui/" rel="nofollow ugc">http://inconver.com/wui/</a>

WUI: Widgets User Interface

Plugin for creating new sidebars for the site and new types of widgets with the custom fields

Rara Themes

RaraTheme Companion is truly a must have companion for your website. It provides 23 useful and frequently used widgets that you can add to the sidebars to create an engaging website.
<h3>Widgets offered</h3>
<ol>
<li>Advertisement</li>
<li>A Featured Page</li>
<li>Author Bio</li>
<li>Call to Action</li>
<li>Client Logo</li>
<li>Contact</li>
<li>Custom Categories</li>
<li>Facebook Page</li>
<li>FAQs</li>
<li>Featured Post</li>
<li>Icon Text</li>
<li>Image Text</li>
<li>Image</li>
<li>Latest Tweets</li>
<li>Pinterest</li>
<li>Popular Post</li>
<li>Posts Category Slider</li>
<li>Recent Post</li>
<li>Snapchat</li>
<li>Social Media</li>
<li>Stat Counter</li>
<li>Team Member</li>
<li>Testimonial</li>
</ol>
The plugin works best with themes developed by Rara Theme.
The plugin also provides simple yet clean code which allows developers to overwrite the plugin properties. The plugin offers a multiple numbers of filters and action hooks which for maximum flexibility to the developers.

RaraTheme Companion

23 extremely useful custom widgets to create an engaging website.

WUI: Widgets User Interface vs RaraTheme Companion