"BoomBar is a WordPress notification bar plugin
that allows you to add a top bar to your WordPress site.
With tons of customization features and intuitive
usability, BoomBar makes it easy to keep your site
visitors informed with special messages or important
BoomBar, a WordPress Notification Bar Plugin!
Use BoomBar site-wide or assign to individual posts or
pages to promote sales or special offers, display
alerts, show your latest tweets or provide a login
prompt for registered users of your WordPress site...!"