Collection
Springer eBooks 2005-
303
Directory of Open Access Books
297
National Center for Biotechnology Information
54
Springer Book Archives -2004
43
O'Reilly
29
OAPEN
27
Henry Stewart Talks
18
Karger eBooks Collection 1997-2013
13
JSTOR Open Access Books
11
Eighteenth Century Collections Online / ECCO
10
Oxford University Press
8
ACS Symposium Series
7
Cambridge Books Online
4
Netlibrary
3
Digi20
2
Ethnographic Video Online Vol. 1
2
Anthropology Online
1
DeGruyter MPG Collection
1
Music Online Reference
1
Oxford Handbook Online
1