Collection
Directory of Open Access Books
250
O'Reilly
131
OAPEN
58
Making of the Modern World
42
Springer eBooks 2005-
40
Springer Book Archives -2004
29
Eighteenth Century Collections Online / ECCO
28
Digi20
12
Social Theory (Alexander Street Press)
11
wiso-net eBooks
7
Nomos
5
JSTOR Open Access Books
2
Cambridge Books Online
1
Ethnographic Video Online Vol. 1
1
National Center for Biotechnology Information
1
Primary Sources for Slavic Studies
1