Script Summary: Completely deletes the advertisement sidebar from the page (as opposed to scripts that just hide it) and extends the player to fill the window.
License: GNU GENERAL PUBLIC LICENSE
(For Firefox, Chrome, Flock, etc.)
This elegantly simple script runs once when the page is loaded, throws away the sidebar entirely and gives the player all the space it needs.
Most Grooveshark scripts only hide the advertisement sidebar, meaning it's still there, taking up memory and swapping ads every few minutes; you just can't see it. Some scripts even run in the background, constantly checking if it comes back!
Deleting it entirely and letting your browser forget it was ever there is the most efficient way of letting your computer concentrate on pumping your Grooveshark music to your speakers.
While you're at it, why not improve Grooveshark a little more by making your browser window tell you what's playing? http://userscripts.org/scripts/show/92083
Credit for thinking up this simple solution goes to Manish Chiniwalar (http://userscripts.org/users/manishchiniwalar), who made the original. I only needed to update it for the December 2010 overhaul of the Grooveshark player.