Are you a member of a UK astronomical society? Are you interested in helping promote it a little more? If so, this post on the SPA BB might be of interest to you:
As part of IYA 2009, I have volunteered to put together a Google map of astro societies in the UK (I hope it hasn't already been done but I don't think so)Sounds like an excellent idea to me.
Quite a few societies are members of Fedastro, but I assume there are some that are not.
The sort of info I need is where they meet (venue with postcode is possible), dates of regular meetings, website, contact name and email address etc.