We're big fans of Greasemonkey here at Download Squad, and for the past few months the best place to find GM user scripts has been the GreaseMonkeyUserScripts wiki. But as much as I love wikis it leaves a bit to be desired, and so I'm hoping that Userscripts.org will grow to replace it. It's a bit rudimentary right now, but they've got the right idea: User scripts can be tagged a la Flickr and you can rate or leave comments about individual scripts as well as see the newest and most popular scripts. I'd like to see an even larger emphasis on new scripts, though (with RSS feeds!) and see the tag cloud on the front page pushed down and perhaps pruned to hide tags only used a couple times. Also, site-specific scripts could be managed better. Fortunately, all of these improvements are already in the works.