Searchers of open access scientific literature

ScientificCommons
Oalster
The Library of Congress
Google Académico
Scirus
World Wide Science: Global Science Gateway
GenamicsJournalSeek
UNIverso-e. Metabuscador de recursos de información
Adient
IE University
Tesis y Monografías
Scrib. Free Open Access Journal.
Yahoo
Infoseek
WebCrawler
Lycos
HotBot