A very cool Firefox plugin called Ubiquity was released by Mozilla labs very recently. It’s hard to describe just how useful it can be, but think QuickSilver/Launchy/Gnome-Do within Firefox. What’s interesting though is that while it has quite a few very neat commands, anybody can add new ones.
I’m fairly active on Identi.ca these days, and when cgerrish asked about using Ubiquity to post to identi.ca, I did some quick investigation. Lo and behold it was *very* easy. First I went to this page which holds a list of commands that people have already created for Ubiquity. Then I did a quick text search for identica and found this script.
To make this a new command in Ubiquity, you just Ctrl+Space to bring up the Ubiquity command line and type “command-editor”. Then just paste in the javascript and Bam! you now have a command called identi.ca. So you just type “identi.ca Testing 123” and this will post a dent (“Testing 123”) right up there for you.
Wow. I’m impressed with the simplicity and the flexibility of this Ubiquity thang! 
ps. Of course, you can find me at http://identi.ca/rfquerin 