Aaron Axelsen

Overrides the <code>wp_notify_moderator</code> function located in pluggable.php. By default, wordpress does not notify a comment author of a moderation 
event. This plugin will look at all users in the blog, and notify anyone who can moderate the plugin, along with the admins and the author 
of that post. This has been tested and does work with WPMU as well.

Post Author Comment Notification

Overrides the wp_notify_moderator function located in pluggable.php.  By default, wordpress does not notify a comment author of a moderation

Ridham

New Tab Redirect Plus will allow you to have your comment visitors links open in a new tab or window. In other words, instead of leaving your site completely when clicked, they will open in a new tab.
This plugin opens all the web links added in the footer comments URL, in a new tab or window which helps to decrease the bounce rate and increase user engagement on your wordpress blog.
Opens all the Web site links (URLs) added in the comments and author URL, in a new tab or window.
This will increase the likelihood that visitors will continue browsing your website.
Simple, fast, and effective!
<h4>Some of the features include:</h4>
*Open comment links in a new tab or the same tab 
*change a custom link’s destination with a redirect 
*Open WordPress Comment Links in New Tab/Window (add target=”_blank”) 
*Replace URL INTO Your Custom web URL 
*Works with http:// and https:// links 
*Simple, fast, and effective!

New Tab Redirect Plus

Stop any fake data sending visitors away - By default, Open WordPress Comment Links in New Tab/Window (add target=”_blank”) tab or window with: New Ta …

Post Author Comment Notification vs New Tab Redirect Plus