| CERN Document Server | www.CERN Document Server | Various |
| Cogprints | www.cogprints.org | Philosophy etc |
| Core | core.ac.uk/ | Access to free to read research papers |
| DOAJ - Directory of Open Access Journals | www.doaj.org | Philosophy, Psychology, Religion, Political science, Science, Social Sciences |
| HighWire Press | home.highwire.org | Journal resevoir. |
| JURN | www.jurn.org | Arts, Humanities etc |
| Sabinet Open Access Journal Collection | www.reference.sabinet.co.za | Education, Labour, Law, Medicine & Health, Religion etc |
| Science Open | www.scienceopen.com | Psychology, Education, History etc |
| The Free Library | www.thefreelibrary.com | Diverse journals |
| UCL Press | uclpress.co.uk/ | Openly accessed university press for journals |
| Unpaywall | http://www.unpaywall.org/ | Freely accessible journals intergrated from thousands of library systems and search platforms worldworld. |
| Wiley Open Access | www.wileyopenaccess.com | Global challenges etc |
