Social meetings are held at Wetherspoons in Milton Keynes. Since March 2007 these are held on the last Tuesday of each month. The regulars usually turn up at around 7.30pm, but feel free to arrive whenever you find convenient.
It's the old Wetherspoon pub opposite the Olive Tree restaurant in the west of Central Milton Keynes, near the Bus and Rail stations and the Santander headquarters - more information here. See a picture on beerintheevening.com (or for a picture of the inside, see the Official Weatherspoons Website). To get there, head for Central Milton Keynes (CMK), for a map see MKWeb (Weatherspoons is the larger brown rectangle near the red symbol that looks like "51" in the centre of the image).