As @ericonabike, am a converted Twitter sceptic. You need to work out what you want from it, and what you're prepared to give to it, but it then becomes a useful and fun way of communicating. Facebook I find less interesting and somehow more intrusive/demanding if it's to work properly. And here you've got an excellent website andForum so why bother with it?
Perhaps you could set yourself up as the pub expert - '@pubsgalore, stuck for a night out in Bradgate,give me one suggestion' kind of thing. Just Tweeting the 'Pub of the Day' woul;d be a start and would drive traffic to the site. Why not put a bit of time into it for a couple of weeks and see how it goes? Thre are a lot of Tweeting beer drinkers out there!
We have done a little bit of infrastructure work on Twitter. When they announced the lists (which they seem to have pretty much given up on now) we did sort out a load of lists with an idea that they would be more useful than our Twitter feed in a lot of ways, so in reply to the tweeting beer drinkers bit:
http://twitter.com/#!/pubsgalore/lists
Love the idea of a pub of the day though, will let that one gestate a little (will be even better if we can get the forum to supply daily Pubs of the day )
Cool I hadn't realised that I could rip a phrase off for it as well.
Big Society, doesn't it just make you feel good to know you are part of it
I'd say a pub of the day is a good start. Tweeting 'interesting' pub news could also be useful - so not stuff aimed at licensees but that customers might find interesting, so whenever a paper tells us that a glass of wine will kill us instantly or make us live forever.
I have more thoughts on it but that'll do for the minute!
*insert something clever/humorous/interesting here*