1. Open Access e- Journals

» DOAJ (Single Gateway to search all Open Access Journals)
» Springer Open

2. Open Access Scholarly Archive

» Core  (Single gateway to search open access research outputs from repositories and journals worldwide)
» ArXiv  (Oldest and largest preprint archive of Physic, Math, Stat, Comp. Sc. and Quantitative Biology)

3. Open Access E-Books

» Search / Browse Oxford Reference and then narrow your choice by Unlock and Free
» Search / Browse Oxford Scholarship and then narrow your choice by Unlock and Free

4. Open Access E-Thesis

» NDLTD (Millions of E-Thesis from thousands of universities around the world)
» OATD (Search 1.6 million electronic theses across the Globe)

5. Open Access E-Books & Digital Library

» OpenStax College (Text books for Undergraduates from Rice University, USA)
» Open Text Book (Gateway to access text books of several prestigious Universities of USA)

6. Open Courseware & MOOC

» E-PGPathshala (From UGC- INFLIBNET)
» MIT Open Courseware (From MIT, USA)

7. Language, Learning and Pedagogy

» https://sites.google.com/site/soyouwanttolearnalanguage/bengali (Bengali language)
» http://www.lmp.ucla.edu/Default.aspx