Collection
Directory of Open Access Books
85
Oxford University Press
55
MIT Press eBook Archive
42
O'Reilly
18
National Center for Biotechnology Information
12
OAPEN
11
Cambridge Books Online
9
Springer eBooks 2005-
9
Netlibrary
7
Eighteenth Century Collections Online / ECCO
6
Digi20
5
DeGruyter MPG Collection
3
Elsevier ScienceDirect eBooks
3
Making of the Modern World
3
Editoria Italiana Online
2
JSTOR Open Access Books
2
Henry Stewart Talks
1
Oxford Handbook Online
1