Collection
Eighteenth Century Collections Online / ECCO
2,969
Music Online Reference
1,811
Making of the Modern World
80
Directory of Open Access Books
39
Ethnographic Video Online Vol. 1
11
OAPEN
10
Digi20
7
Netlibrary
7
JSTOR Open Access Books
6
Primary Sources for Slavic Studies
5
Cambridge Books Online
3
Oxford Handbook Online
3
Oxford University Press
3
ACS Symposium Series
2
Empire Online
2
DeGruyter MPG Collection
1