mb21 - The Transmitter Gallery - Featuring photos of plenty of radio and TV transmitter masts in the UK. - http://tx.mb21.co.uk/gallery/
DX Radio - A listing of frequencies and RDS idents for commercial and BBC radio stations in the whole of the country. - http://www.dxradio.co.uk/
North West Radio - A directory specialising in radio stations in the North West of England, covering major cities such as Manchester and Liverpool. - http://www.northwestradio.info/
RadioFeeds UK & Ireland - Directory of radio stations broadcasting on the internet with direct links to the live feeds. Includes latest news and updates, plus listing by streaming format. - http://www.radiofeeds.co.uk/
radio-now.co.uk - Directory listing national, regional and local online stations. Also contains industry news and online listening links. - http://www.radio-now.co.uk/