GrooveNotify watches the playing song in Grooveshark and uses the notification system to display consistent notifications. It also supports Growl notifications, if pynotify is not available.
Currently, it only supports Grooveshark Desktop (http://wanderr.com/jay/attn-hackers-opening-up-grooveshark/2009/12/21/).
Download it from the PPA (http://launchpad.net/~jamalta/+archive/groovenotify):
sudo add-apt-repository ppa:jamalta/groovenotify
sudo apt-get update
sudo apt-get install groovenotify
groovenotify &
Product's homepage
Requirements:
· Grooveshark