Electoral systems some ideas on the subject
I have a document form John Hughes which I will link in when I've discovered its URL.
Here is a document introducing the STV system that we discussed at our last meeting.
Here is a document (PDF) describing the mathematics of STV system that we discussed at our last meeting.
BTW: Must declare and interest − Brian Wichmann is a friend of mine.
Here is a list of links to various documents, including the above.
Here is the Electoral Reform society.