There are currently 66 member libraries:
Balfour Library (Pitt Rivers Museum)
Balliol College Library
Bodleian Japanese Library
Brasenose College Library
Chinese Studies Library
Computing Laboratory Library
Continuing Education Library
Corpus Christi College Library
Earth Sciences Library
Educational Studies Library
Engineering Science Library
English Faculty Library
Exeter College Library
Experimental Psychology Library
Geography and the Environment Library
Harris Manchester College Library
Health Care Libraries
Hertford College Library
History Faculty Library
Hooke Library
Indian Institute Library
Jesus College Library
Keble College Library
Lady Margaret Hall Library
Linacre College Library
Lincoln College Library
Magdalen College Library
Maison Francaise Library
Materials Library
Mathematical Institute Library
Merton College Library
Middle East Centre Library
Music Faculty Library
New College Library
Nuffield College Library
Oriental Institute Library
Oxford Centre for Hebrew and Jewish Studies Library
Oxford Internet Institute Library
Oxford Union Society Library
Pembroke College Library
Philosophy Faculty Library
Plant Sciences Library
Queen's College Library
Regent's Park College Library
Sackler Library
Said Business School Library
Social and Cultural Anthropology Library
Social Science Library
Somerville College Library
St Anne's College Library
Statistics Library
St Catherine's College Library
St Cross College Library
St Edmund Hall Library
St Hugh's College Library
St John's College Library
St Peter's College Library
Taylor Institution Main Library
Taylor Institution Modern Languages Faculty Library
Taylor Institution Slavonic & Modern Greek Library
Theology Faculty Library
Trinity College Library
Wadham College Library
Wolfson College Library
Worcester College Library
Zoology Library
The following chart shows how the number of member libraries has changed over the years, increasing as new libraries join and decreasing as libraries merge together into larger units.