Open Access Resources

Bharat Padhe Online Open Educational Resources, a large number of national and international scholarly resources.

Open Access Resources are available in various forms and types such as audio books, e-databases, encyclopedias, electronic books, bibliographic databases, e- journals, Electronic Theses & Dissertations, Directories, e-print archives, digital repositories, open education resources, open access directories, open research data repositories, open text books, search engines, online patent datbases, standard sources, subject Gateways, open courseware, online open courseware, open access video resources, open educational learning resources, and rare books. All these resources are scholarly and useful to support our academic and research work and are available on the web. Most of these resources are free, can be accessed without any restrictions at the user end.
These resources enable you to access at CUG Library Open Access Resources platform.




High Throughput Experimental Materials Database 
The mission of the High Throughput Experimental Materials Database (HTEM DB) is to enable discovery of new materials with useful properties by releasing large amounts of high-quality experimental data to public. The HTEM DB contains information about materials obtained from high-throughput experiments at the National Renewable Energy Laboratory (NREL). The High Throughput Experimental Materials (HTEM) database is a collection of more than 140,000 sample entries of data on inorganic thin-film materials for advanced energy research. The entries offer “details about the structural, chemical, and optoelectronic properties of the materials, and their synthesis conditions,” 


List of web based open accessible Encyclopedia

more list of Internet Encyclopedias click here


Digital Library of India  
DLI Initiated under the Million Books Project, digitized and hosted all the significant works published in India. Supported by Govt. of India.

Directory of Open Access Books (DOAB)  
DOAB Provides an access to over 3000 e-books from more than 100 well-known publishers covering almost all disciplines.

E-Books Directory  
Provides over 9327 academic peer-reviewed e-books, and other documents with links to the full text of the publication at the publisher website.

HathiTrust Digital Library  
A collaborative electronic book repository supported by 60 academic and research libraries. It provides free access to books, serials, standards, theses, etc.

Internet Archive  
Internet Archive is nonprofit digital library providing the free public access to collection of digitized materials, including websites, music moving images and public domain books.

Million Book Project  
A digitization project of books initiated by Carnegie Mellon University. It provides access to over 1.5 million e-books to the readers.

National Digital Library
Ministry of Human Resource Development (MHRD) under its National Mission on Education through Information and Communication Technology (NMEICT) has initiated the National Digital Library of India (NDL India) pilot project to develop a framework of virtual repository of learning resources with a single-window search facility

Project Gutenberg  
Project Gutenberg offers over 46,000 free ebooks, user can choose among free e-pub format books, free kindle books, download them or read them online.

PDF Drive

PDF Drive is a free search engine which allows you to search, preview ,download millions of e-books

SpringerOpen books

Read Print

The Complete Works of William Shakespeare

Getfreebooks brings both authors and readers into the world of free legal ebooks


Open Access database of chemistry resources at European Bioinformatics Institute (EMBL-EBI).

ChemSpider is a free chemical structure database providing full- text and access to over 58 million structures from hundreds of data sources owned by the Royal Society of Chemistry.

ChemSynthesis is a freely accessible database of chemicals. There are currently more than 40,000 compounds and more than 45,000 synthesis references in the database.

Civil Engineering Database (CEDB) 
A free bibliographic database offering over 200,000 records of all publications by American Society of Civil Engineers.

Collection of Computer Science Bibliographies 

This is a collection of bibliographies of scientific literature in computer science from various sources, covering most aspects of computer science.

DBLP Computer Science Bibliography 
DBLP Provides bibliographic information on Computer Science. Indexes more than 1 million articles and also it contains 10,000 links to home pages of Computer Scientists.

Education Resources Information Center (ERIC) 
ERIC is a database provides access to over 1.6 million educational literature and resources.

Indian Science Abstracts 
Indian Science Abstracts (ISA) is a bibliographical database published by NISCAIR.

IndMED - bibliographic database covering prominent peer reviewed 100 Indian medical journals bibliography.

PubMed is a database primarily of references and abstracts on life sciences and biomedical topics.



OpenDOAR is an authoritative worldwide directory of academic open access repositories and provides a quality-assured listing

Registry of Open Access Repositories (ROAR) 

ROAR is a searchable international Registry of Open Access Repositories indexing the creation, location and growth of open access institutional repositories and their contents.

Registry of Open Access Repositories Mandatory Archiving Policies (ROARMAP) 
ROARMAP is a searchable international registry charting the growth of open access mandates adopted by universities, research institutions and research funders. 

Repository 66 Map 
Repository 66 Map is a map of open access repositories. It shows worldwide open access digital repositories using data from ROAR and OpenDOAR.

SCOAP3 Repository 
SCOAP3 hosts open access articles published under the Sponsoring Consortium for Open Access Publishing in Particle Physics (SCOAP3).


Bioline International  
Bioline provides open access to quality research journals published in developing countries on biodiversity, environment, conservation and international development.

BioMed Central (BMC)  
BioMed Central is an Open Access (OA) publisher and few of their journals cover Neurobiology, Neuroscience, Neurology and Psychiatry topics.

BMJ Open  
BMJ is an online open access journal dedicated to publishing medical research from all disciplines and therapeutic areas.

PLoS Journals  
PLOS is a nonprofit open access scientific publishing project aimed at creating a library of journals and other scientific literature under an open content license.

PubMed Central   
PubMed Central (PMC) is a free digital repository that archives publicly accessible full-text scholarly articles that have been published within the biomedical and life sciences journal literature.


Directory of Open Access Journals (DOAJ)  
DOAJ online directory that indexes and provides access to 11,000 + high quality, open access, peer-reviewed journals covering all disciplines.


Major Indian publishers journals under open access



Institutional repositories presenting scholarly and intellectual output of their respective institutions.
Directory of Indian Institutional Repository

Open Access Institutional Repositories (World Initiatives)

List of open research data repositories.


Open Access Textbooks  
Open Access Textbooks is  a FIPSE Grant Project to creating a model of open textbook and establish a state wide open textbook initiative.

Open SUNY Textbooks  
This is an open access textbook publishing initiative established by State University of New York libraries and supported by SUNY Innovative Instruction Technology Grants.


EBSCO Open Dissertations is a collaboration between EBSCO and BiblioLabs that brings an innovative approach to increasing traffic and discoverability of ETD research.

NDLTD: Networked Digital Library of Theses and Dissertations  
NDLTD Contains metadata & full text of more than one million electronic theses and dissertations contributed by 125+ member universities & consortia. To visit the Global ETD Search -

Open Access Theses and Dissertations (OATD) 
OPATD is an indexes  theses and dissertations from well-known sources and provide direct link to the full text ETD.

PQDT OPEN: ProQuest Digital Theses  
PQDT Open provides access to full text of theses submitted by the researcher himself under open access initiative with PQDT open.

ShodhGanga, India  
A source for theses submitted to Indian universities, which includes biological sciences & engineering.



Open Geospatial Consortium
OGC(R) standards are technical documents that detail interfaces or encodings. Software developers use these documents to build open interfaces and encodings into their products and services.

Public Safety Standards of the Republic of India is open standards & codes on public safety, world trade and world peace on a noncommercial basis.
To browse the detailed Standards Resource Guide click here



Open CourseWare 
Here is a growing collection of open courseware

National Institutes and Universties

International Institutes and Universties

Online Open CourseWare


List of collections Open Access Video lectures.

TeacherTube is a free instructional and educational resources such as video, audio, documents, photos, groups shared by the teachers.


Commercial Publishers List of open access articles in their selected Journals.


MERLOT (Multimedia Educational Resource for Learning and Online Teaching) 

The MERLOT (Multimedia Educational Resource for Learning and Online Teaching) system provides access to curated online learning and support materials and content creation tools, led by an international community of educators, learners and researchers.