|  | Federated/Common Search Engines | Subject Gateway | 
|  | JCCC | Cogprints |  | 
|  | Knimbus | E-Print Network |  | 
|  | Reference & Citation Sources | India Environment Portal |  | 
|  | Chicago Manual of Style | Infomine |  | 
|  | Credo reference | Pinakes: A Subject Launchpad |  | 
|  | Encyclopedia Britannica | Voice of the shuttle |  | 
|  | Bibliographic Sources | WWW Virtual Library |  | 
|  | SciFinder Scholar |  |  | 
|  | Citation Analysis Resources |  |  | 
|  | Scopus | Electronic journals |  | 
|  | Web of Science (Through N-List Program) | Bioline International |  | 
|  | Full Text Sources | BioMed central |  | 
|  | Annual Reviews | Directory of Open Access Journals |  | 
|  | Cambridge University Press | High Wire Press |  | 
|  | Environment and History | Indian Academy of Science |  | 
|  | Indian Journal. Com | Public Library of Science |  | 
|  | J-STOR | Strategian |  | 
|  | Nature |  |  | 
|  | Oxford University Press + Archive |  |  | 
|  | Portland Press | Electronic Books |  | 
|  | Project Muse | Free Books |  | 
|  | Sage Journal Online | Internet Public Library |  | 
|  | Science Direct | The Online Book page |  | 
|  | Science Magazine | Miscellaneous Electronic Resources |  | 
|  | Springer Link + Archives | ERIC |  | 
|  | Synthesis Complete | NDLTD |  | 
|  | Taylor and Francis |  |  | 
|  | Wiley Inter Science |  |  | 
|  | World Intellectual Property Search |