Perhaps myhometown.stackexchange.com could be a good start? The format is relatively simple (just Q&A). All the hosting is taken care-of... so one could set u

Perhaps myhometown.stackexchange.com could be a good start? The format is relatively simple (just Q&A). All the hosting is taken care-of... so one could set up a stackexchange in an afternoon (just seed the questions and do some basic design).