I have two Greasemonkey userscripts available. The first is a script that makes links to the NYT registration free by running them through the blogspot link generator, and then following the link that's generated. I've written it so that it doesn't alter your history (and thus your backbutton's operation)

NYT Registration Free Links
I still don't understand xpath or the document.evaluate method, so I borrowed most of my code from the "NYT Single Page Links" userscript found here: http://www.dankohn.com/software/


The second userscript I've hacked together is a modification of the Slashdot: Add Cache Links script found at http://www.cs.uni-magdeburg.de/~vlaube/Projekte/GreaseMonkey/
The script Adds Google Cache and Coral Cache links to all posts on Fark to prevent against Farking.
UnFark

Today I did a couple of more. My workplace has a stupid proxy that prevents firefox from realizing a url was bad.
Bad Gateway: Some corporate firewalls return errors that Firefox doesn't understand. This script replaces the "502 Bad Gateway" error my company returns with a google "I'm feeling lucky" search like one would expect from Firefox.

New Window Fixer:Removes href="javascript:..." type links and links and replaces them with target=_blank links so that middle click can be used on such links, if desired. Minor modification to New Window Disabler from http://dogdoo.net. Still allows web devs to create new windows, just with a less stupid method.