When a reply is made to a comment, a twitter notification (@twittername) will be sent to the original comment author to notify him/her of the reply. The notification will be sent from your Twitteraccount. 
This will allow the users to follow up on the comment and expand the conversation if desired.

CommentTweets

When a reply is made to a comment, a twitter notification (@twittername) will be sent to the original comment author to notify him/her of the reply.

metaphorcreations

Custom pack of widgets including shortcode generators.
<ul>
<li>Twitter</li>
<li>Social</li>
<li>Recent Comments</li>
<li>Recent Posts</li>
<li>Tabbed Posts</li>
<li>Contact</li>
<li>Post Navigation</li>
<li>Collapse</li>
</ul>
<h3>Advanced Info</h3>
Each widget includes a shortcode generator. Copy and paste the shortcodes into your posts to display the widget contents anywhere on your site.
Each widget also displays the widget ID of the widget. This can be helpful if you wish to use any of the filters built into the widgets.

Metaphor Widgets

Custom pack of widgets including shortcode generators.

CommentTweets vs Metaphor Widgets