IAALD
DOAJ - Directory of Open Access Journals
http://www.doaj.org
EZB – Elektronische Zeitschriften Bibliothek
http://rzblx1.uni-regensburg.de/ezeit/fl.phtml?bibid=NKP&colors=7&lang=en
Faostat - FAO Statistics
http://faostat.fao.org
AGORA
Access to Global Online Research in Agriculture
http://www.teeal.org
AJOL African Journals OnLine
http://www.ajol.org
CGIAR Consultative Group of Agricultural Research
http://www.cgiar.org/publications/library/index.html
HINARI
Health InterNetwork Access to Research Initiative
http://extranet.who.int
AGRICOLA
http://www.nal.usda.gov/ag98
AGRIS
http://www.fao.org/agris
ue for research and studies of tropical and subtropical regions. More ...