Remi Corson

This plugin helps admins to easily create admin notification inside the WordPress administration.
You can choose many options and decide how and where to display the notifications.

Easy Admin Notification

Tested up to 3.3.1 Stable Tag: 1.4 Adds the ability to create easily notification in the admin panel

vmihailenco

airbrake

benarent

This plugin collects and aggregates all errors created by WordPress and it’s plugins. It de-dupes and lets developers know how to fix issues fast.

Airbrake

License: GPLv2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html

Airbrake is collects all errors created by Wordpress and it's plug …

Easy Admin Notification vs Airbrake