Just to illiminate any further arguments, for UK airfields why not go to the “official” horse’s mouth (as it were) – NATS.

http://www.nats-uk.ead-it.com/public/index.php%3Foption=com_content&task=blogcategory&id=165&Itemid=3.html

Select “Aerodrome Index – specific” and then the airfield that you’re interested in. The textual data includes all the frequencies – other pages include stuff like airfield and apron layouts, instrument approach plates, etc.

Andy