Nikolay Yordanov

Like-it allows visitors to just “like” a post instead of commenting, preventing multiple meaningless comments like “that’s nice”, or providing a faster user experience. The text of the button may be changed in order to suit your purposes better – for example, using “I agree”.

Like-it

Like-it allows visitors to just "like" a post, preventing multiple meaningless comments or providing a faster user experience.

John James Jacoby

Stuttter

Use this plugin to monitor the heart-rate of your WordPress installation.
WordPress uses an API called “Heartbeat” to monitor certain conditions and report to the user if something went wrong.
If your login cookie expires while you’re writing a post, for example, Heartbeat will open a modal window and allow you to log in again.
This plugin adds a small menu item to the WordPress toolbar that does the following things:
<ul>
<li>Beats every 1 second to remind you about the API</li>
<li>Throbs every interval of the Heartbeat API to confirm connection is active</li>
</ul>
Future versions of this plugin could add a drop-down to this menu with more information.

WP Heart Throb

Very cool, could be even cooler though with some additional front end features. But I might make a pull request on github.

Like-it vs WP Heart Throb