I actually just knuckled down and went through each member in our database, and was surprised to find the breadth of institutions we have members from! They include, as of 16 March 2006:

Bath
Birmingham
Bournemouth
Bradford
Brighton
Bristol
Cambridge
Canterbury
City
De Montfort
Derby
Durham
Edinburgh
Essex
Exeter
Glasgow
Greenwich
Harvard
Heriot-Watt, Edinburgh
Hertfordshire
Huddersfield
Hull
Imperial
Institute of Education, London
Keele
King’s
Liverpool
London College of Fashion
London Metropolitan
LSE
Loughborough
Luton
Manchester
Manchester Metropolitan
Marjon College
Middlesex
Newcastle Upon Tyne
North East Surrey College of Technology
Northumbria
Nottingham
Open University
Oxford
Oxford Brookes
Oxford Institute of Legal Practice
Portsmouth
Queen Mary’s
Queen’s University, Belfast
Royal Veterinary College
Ruskin’s College, Oxford
Salford
Sheffield
SOAS
Southampton
Swansea
Technology Innovation Centre, Birmingham
UCL
Warwick
Wiltshire College
Wolverhampton

Update: We just had a sign up from University of Strathclyde, so that’s now 60!