- American Medical Writers Association http://www.amwa.org/
- Asia Pacific Association of Medical Journal Editors http://www.wpro.who.int/apame/en/
- Association of Learned and Professional Society Publishers http://www.alpsp.org/
- Board of Editors in the Life Science http://www.bels.org/
- Committee on Publication Ethics http://publicationethics.org/
- Council of Science Editors http://www.councilscienceeditors.org/
- CrossRef http://crossref.org
- European Association of Science Editors http://ease.org.uk/
- International Committee of Medical Journal Editors http://www.icmje.org/
- Korean Association of Medical Journal Editors http://kamje.kr
- Korean Council of Science Editors http://kcse.org/
- National Center for Biotechnology Information http://www.ncbi.nlm.nih.gov/
- Society for Scholarly Publishing http://www.sspnet.org/
- World Association of Medical Editors http://www.wame.org/
- Agricola http://agricola.nal.usda.gov/ Free
- Biosis Previews http://thomsonreuters.com/biosis-previews/
- Chemical Abstracts Service http://www.cas.org/
- CINAHL http://www.ebscohost.com/nursing/products/cinahl-databases/cinahl-complete
- Compendex (Engineering Index) http://www.elsevier.com/online-tools/engineering-village/contentdatabase-overview
- ArXiv http://arxiv.org/ Free
- EMBASE http://www.embase.com/
- Google Scholar http://scholar.google.com Free
- PsycINFO http://www.apa.org/pubs/databases/psycinfo/ Free
- PubMed Central http://pubmedcentra.org Free
- PubMed http://pubmed.org Free
- ScienceCentral http://e-sciencecentral.org/ Free
- SCOPUS http://www.scopus.com/
- Web of Science https://webofknowledge.com/
- ISO abbreviationhttp://www.issn.org/services/online-services/access-to-the-ltwa/?letter=a
- SI Unit http://www.bipm.org/en/si/