This is a great local site, I have just discovered it this morning, but it is a wee cracker. One of those local sites developed out of enthusiasm for a subject rather than for aesthetic benefit. The content has a fantastically nerdy attention to detail.
http://members.lycos.co.uk/outvw/index.html
The Northern Ireland Ads page covers an easily 'pisstakeable' subject in just a slightly 'tongue in cheek' fashion.