This plugin provides an easy framework to add Digg buttons and Digg widgets to your page. Digg buttons help drive traffic to your content by allowing easy Digging and submission into the Digg ecosystem. Digg widgets allow you to supplement your content with the top stories from Digg either through the lens of your site or through a specific area or topic from Digg.
Out of the box, it allows you to:
<ul>
<li>Place yellow smart Digg buttons in the three size options: compact, medium and large. The yellow smart Digg buttons can tell if a web page has been Dugg or not and displays the proper number count. </li>
<li>Generate a customized Digg widget with different placement options. The widget generator can show the most Dugg content by domain, topic, search term or even show a particular user’s Dugg stories. After selecting the type of content to display, it’s easy to save that state and decide where to position it on a page.</li>
</ul>
The Digg plugin is developed and maintained by Digg Inc. and will be updated regularly as new capabilities are introduced to the Digg platform.

Digg

The Digg plugin provides an easy framework to add Digg buttons and Digg widgets to your page.

preblogging

The best way to increase your traffic from Digg.com and StumbleUpon.com is to get more votes. Often you may have a great blog post, and people do visit via these websites. 
By providing a call to action. This call to action will greatly improve the number of positive votes you will get, and hence in the end you will get more traffic.
<h4>What is new in this version ?</h4>
In Version 1.3, there is the option to specify a your own site. And you can send these visitors a certain message also. Also there is a new test mode !

Increase Sociability

Increase the traffic from social media websites by reminding visitors to vote

Digg vs Increase Sociability