Show an awesome looking notification bar on your website, that you can customize to match your theme.
The Foobar is a cool notification / alert bar that sits at the top of the page and draws in the visitor's attention.
Online demo of the full version: http://themergency.com/foobar-wordpress-plugin/
This plugin is a lite version of the Foobar Notification Plugin. The full version has many more features including fixed, inline and BOTTOM foobars; custom HTML on left and right; unlimited Foobars; different Foobars per page; rebrandable name; social buttons area; multiple messages in the Foobar; load tweets or RSS feed; conditional logic for special rules to show the foobar; and many more!