| 1 | : | | Wiley Online Library | Scientific research articles, journals, books, and reference works |
| 2 | : | | NDLI: Study at home (iitkgp.ac.in) |
| 3 | : | | ScienceOpen |
| 4 | : | | Internet Archive: Digital Library of Free & Borrowable Books, Movies, Music & Wayback Machine |
| 5 | : | | TED: Ideas Worth Spreading |
| 6 | : | | Wikipedia |
| 7 | : | | Directory of Open Access Journals – DOAJ |
| 8 | : | | PDF Books Library To download free eBooks (pdfbooksworld.com) |
| 9 | : | | ERIC - Education Resources Information Center |
| 10 | : | | AWS Skill Builder |
| 11 | : | | Best Free Online Courses with Certificates | Learn for Free (mygreatlearning.com) |
| 12 | : | | Best Free Courses & Certificates Online [2024] | Coursera |
| 13 | : | | Udemy Free Resource Center: Find Free Online Courses | Udemy |
