iamklaus

Features:
<ul>
<li>Follow posts: users can choose for each post if they want to follow the post. Following means users get an email everytime the post is being updated or even when the post is trashed. This includes new comments on the post as well. The email includes a diff, so that the user immediately can see the changes without visiting the website.</li>
<li>Favorites posts: user can favorite each post. All favorite posts per user will be listed in a widget. This feature give your users the possibility to create their own custom menu. Additionally users can sort their favorites by drag & drop.</li>
<li>Delete posts: if the users has the capability to delete posts, he can do this on the frontend (only trashing the content, no hard delete)</li>
</ul>
<h3>Arbitrary section</h3>

Better Content

Let your community help you creating better content. The vision of this plugin is to help website editors to improve their content.

AbroadPal

Notification Widget offers you the ability to insert and fully customize an overlay widget for your website, blog, etc.
You can easily change all settings of the entire overlay in the Dashboard. 
There are the following settings for you to change:
Overlay Style: 
– colors of bar and content frame background 
– text of the content frame and bar
Overlay Layout: 
– distance of the close button to the borders 
– size of the close button 
– height of the bar 
– height and width of the content frame 
– widget position (X- and Y-axis)

Notification Widget

Notification Widget is a overlay allowing you to get a individual overlay for your website.

Better Content vs Notification Widget