Collection
Eighteenth Century Collections Online / ECCO
514
Directory of Open Access Books
195
O'Reilly
135
Emerald Business, Management and Economics eBook Collection Archive
91
Springer eBooks 2005-
80
Springer Book Archives -2004
60
OAPEN
56
Making of the Modern World
33
JSTOR Open Access Books
32
MIT Press eBook Archive
24
Henry Stewart Talks
23
DeGruyter MPG Collection
17
Making of Modern Law / Legal Treatises
17
National Center for Biotechnology Information
12
ACS Symposium Series
8
Editoria Italiana Online
8
ACS Advances in Chemistry
7
Digi20
5
Oxford University Press
4
Cambridge Books Online
3
Elsevier ScienceDirect eBooks
3
Netlibrary
2
MIT Press Direct to Open
1
Music Online Reference
1
Nomos
1
Oxford Handbook Online
1
Wiley Online Books
1
World Bank E-Library Archive
1