Big plusses with this one - it's browser based so all I have to do is click an icon to save references. It was really easy to install and works with OpenOffice (a deal-breaker for me). I love that it opens up just below your browser window so you can see it all properly, including the different folders you've set up to manage different pieces of research. I suspect this would be even better on a "proper" computer rather than my little 9" laptop.
So far, so good! And with that, I'm off to do some searching for an article on information retrieval. I'll report back after the practical experience of using Zotero for an entire project.