BlackChat UK
Meet black people from around the UK and the globe.
http://www.blacknet.co.uk/chat

Chatboard.co.uk
Features the busy Northumberland ChatBoard forum.
http://chatboard.co.uk

Christian Chat UK
Chat rooms, contacts, and penpals.
http://www.christianchat.co.uk

KnowThyNeighbour
Provides messageboards for users in similar postcodes, also links to local information, including maps and important numbers.[registration required]
http://www.knowthyneighbour.com

Portuguese Chat Rooms
Portuguese Chat Rooms.
http://www.exam-ta.ac.uk/portugalchat.htm

UK Chat
UK community chat site with various topics.
http://www.ukchat.com

UK Update
Community for British expats all over the world, with news, weather, shopping, chat, forums and articles of interest.
http://www.ukupdate.net