Collection
Springer eBooks 2005-
1,631
Springer Book Archives -2004
1,190
Directory of Open Access Books
667
National Center for Biotechnology Information
187
Oxford University Press
116
MIT Press eBook Archive
105
Springer Protocols Archive 1981-2004
50
Elsevier ScienceDirect eBooks
38
O'Reilly
31
ACS Symposium Series
28
Cambridge Books Online
22
Oxford Handbook Online
17
Wiley Online Books
10
DeGruyter MPG Collection
7
JSTOR Open Access Books
6
Emerald Business, Management and Economics eBook Collection Archive
2
OAPEN
2
Digi20
1
JSTOR Books
1
MIT Press Direct to Open
1