OPEN ACCESS DIRECTORIES
ROAR
ELECTRONIC JOURNALS
Indian Open Access Journal
E-Book
e-Book Engineering Core (EBSCO)
SEARCH ENGINES (SCHOLARLY)
BASE: Bielefeld Academic Search Engine
INDIAN OPEN ACCESS REPOSITORIES
CSIR-Indian Institute of Chemical Biology
CSIR-NAL Institutional Repository
Indian Institue of Astrophysics Digital Repository
Indian Institute of Management Kozhikode
Indian Institute of Science, Bangalore
National Institute of Technology (NIT) Rourkela
National Physical Laboratory (NPL)
OPEN RESEARCH DATA REPOSITORY
European Variation Archive (EVA)
NASA Global Change Master Directory (GCMD)
UNESCO: Open Access Publications
World Bank: Open Knowledge Repository
Worldwide Protein Data Bank (wwPDB)
THESES AND DISSERTATIONS
NDLTD: Networked Digital Library of Theses and Dissertations
Open Access Theses and Dissertations (OATD)
PQDT OPEN: ProQuest Digital Theses
ONLINE PATENT DATABASE
US Patent and Trademark Office (PTO)
SUBJECT GATEWAYS
Chemdex: the Directory of Chemistry
ChemWeb: a Chemistry Portal Central to Science
Vifamath: the Virtual Library of Mathematics
PARTIAL OPEN ACCESS
Taylor and Francis Open Access
VIDEO SOURCES