Collection
O'Reilly
1,266
Springer Book Archives -2004
828
Springer eBooks 2005-
802
Directory of Open Access Books
219
Eighteenth Century Collections Online / ECCO
217
OAPEN
84
Oxford University Press
75
MIT Press eBook Archive
67
DeGruyter MPG Collection
47
Cambridge Books Online
46
Digi20
39
JSTOR Open Access Books
36
Oxford Handbook Online
9
Elsevier eBook collection Mathematics
8
National Center for Biotechnology Information
7
OECD Books and Papers
6
Nomos
5
IEEE Standards
4
Springer Lecture Notes Archiv 1964-1996
3
Elsevier ScienceDirect eBooks
2
World Bank E-Library Archive
2
Brill Online Reference Works
1
Editoria Italiana Online
1
IEEE Conference Proceedings
1
Lecture Notes in Computer Science
1
Making of Modern Law / Legal Treatises
1
Netlibrary
1
Wiley Online Books
1