Zotero is a Firefox browser plugin for keeping track of citations and is very useful in an academic environment. I’ve played with it from time to time and with each progressive version it is getting better and better. Apparently now its even good enought that, Thomson Reuters, makers of Endnote software, a commercial competitor of Zotero, has sued the Commonwealth of Virginia (George Mason University is where the core team developing Zotero is based) over Zotero being able to read Endnote files into the Zotero system. Yeah, if I were Endnote I’d be scared pantless that a startup which actually promotes and open standard is about to take away your market. And peoples, aren’t you happy that all of the value you’ve created in your citation databases in Endnote is effectively forever trapped inside that program. Makes you almost want to not use the Endnote software, doesn’t it. ENDnote?