Zotero is a research tool that works with your web browser to automatically sense bibliographic information on a webpage and save it.
Whether you're searching for a journal article in JSTOR, or a book on iDiscover, one click on Zotero and you've got a reference for your dissertation.
It takes a lot of the hard work out of formatting references, leaving you more time for writing and less time stressing about commas.
The best guide has been written by Jason Puckett.
12 'must know' (& REALLY HELPFUL) Zotero tips and techniques
Article and presentation information written by Dr Emma Coonan, formerly Research Skills Librarian, University Library, Cambridge.
Zotero's group functionality allows you to share a set of references with a groups of like-minded researchers. Once you have an account on Zotero.org the group functionality is available to you. Just set up a group and manage members by emailing those you want to join in. See Jason Puckett's page for more information.
A number of libraries offer Zotero training via UTBS.These include taught sessions and self-directed resources. See session availability here.