How To Monkey With the Web - The software that lets you rewrite your favorite sites
By Paul?Boutin
http://www.slate.com/id/2126908/
I had heard of Grease Monkey a while ago, and apparently it's been improved since then. I myself have created a basic "Ad Blocker" bookmarklet (which works in IE or FF) but have yet to use GM since I'm afraid I'll addicted to coding little widgets for it :) I like the fact that there's nothing the Suits can do to legally clamp down on GM because of their tool somehow modifying intellectual property etc. like certain other technologies of the past (there was one that basically enabled users to comment on, and even "edit", a site for other visitors to see, just with a certain plugin installed -- can't remember the name right now, but it was "shut down" :( )