• Συνδρομητικές

  • JSTOR
  • Web of Science

• HEAL-link

  • Ενιαία μηχανή αναζήτησης Heal Link (ebooks-journals)
  • Cambridge Core (Cambridge University Press)
  • Coronavirus Research Database (ProQuest)
  • IEEE Xplore
  • OECD iLibrary
  • IOPScience
  • ProQuest
  • Scitation (AIP Publishing)
  • Scopus
  • SpringerLink
  • UN iLibrary

• Open Access

  • BHL (Biodiversity Heritage Library)
  • De Gruyter
  • Dimensions
  • ELDIS (Electronic Development and Environment Information System)
  • ERIC (Education Resources Information Center)
  • Hathi Trust Digital Library
  • Hikari Ltd.
  • Manchester Open Hive
  • MIT Press Direct
  • Sciendo
  • Treesearch (USDA)

• Μηχανές Αναζήτησης/Search engines (Databases)

  • BASE (Bielefeld Academic Search Engine)
  • CORE (COnnecting REpositories)
  • Digital Commons Network
  • Google Scholar
  • OASIS (Openly Available Sources Integrated Search)
  • Open AIRE
  • Semantic Scholar
  • Open Archives (Εθνικό Κέντρο Τεκμηρίωσης)

• Συνδρομητικά

  • Proquest EBook Central Academic Complete

• HEAL-link

  • ACM Proceedings
  • Emerald eBooks Series
  • ScienceDirect eBooks (Elsevier)
  • ScienceDirect eBooks series (Elsevier)
  • SpringerLink eBooks
  • Taylor & Francis Online eBooks
  • Wiley Online Library eBooks

• Open Access

  • ATINER Conference Paper series
  • Brill eBooks
  • IntechOpen
  • Iwa Publishing
  • JSTOR Open Access eBooks
  • National Academies Press
  • Open Book Publishers
  • Project Muse Open Access eBooks
  • University of Michigan Press eBooks

• Μηχανές Αναζήτησης/Search engines (Databases)

  • DOAB (Directory of Open Access Books)
  • E-books Directory
  • OAPEN Library (Open Access Publishing in European Networks)
  • Open Research Library

• Heal-Link

  • Encyclopedia of Ocean Sciences (Elsevier)
  • ScienceDirect Reference Works (Elsevier)
  • ScienceDirect Handbooks (Elsevier)

• Open Access

  • Encyclopedia.com
  • The Collins Dictionary
  • Merriam-Webster
  • Oxford Reference
  • Oxford Reference Encyclopedias

• BC Campus OpenEd
• Galileo: Open Learning Materials
• Open Culture Textbooks
• Open Library Ontario
• Open Textbook Library
• Saylor Academy Open Textbooks
• Κάλλιπος
• Ανοικτά Μαθήματα (Open Courses)

• HEAL-Link

  • Θεματική αναζήτηση ηλεκτρονικών περιοδικών Heal-Link (για τίτλους που δεν εντοπίζονται μέσω της πύλης της HEAL-link υπάρχει η δυνατότητα εναλλακτικής αναζήτησης κατευθείαν από τη πύλη του εκδότη)
  • ACM Journals
  • AK Journals (Akademiai Kiado)
  • Taylor and Francis Online Journals
  • De Gruyter
  • Oxford Academic Journals
  • Project Muse
  • ProQuest Periodicals Archive Online
  • Sage Journals
  • ScienceDirect Journals (Elsevier)
  • SpringerLink Journals
  • Wiley Online Library Journals

Ενδεικτικά περιοδικά

• Applied Ocean Research
• Aquatic Conservation: Marine and Freshwater Ecosystems
• Fisheries Management and Ecology
• Fisheries Oceanography
• Journal of Applied Aquaculture
• Ocean & Coastal Management
• Progress in Oceanography

• Open Access

  • Academic Journals
  • Advances in Statistical Climatology, Meteorology and Oceanography
  • Berghahn Journals
  • BioOne Complete
  • CBOA
  • Frontiers in Marine Science
  • Frontiers in Water
  • GeoRef Open Access Journals & Series
  • Iwa Publishing
  • Journal of Marine Science: Research & Development
  • JSTOR Open Access Journals
  • Ocean Science
  • PLOS ONE
  • REABIC Journals
  • Springer Open Access Journals
  • eJournals (ePublishing-EKT)
  • ATINER Journals
  • Bulletin of the Geological Society of Greece
  • Mediterranean Marine Science
  • South-Eastern European Journal of Earth Observation and Geomatics

• Μηχανές Αναζήτησης/Search engines (Databases)

  • DOAJ (Directory of Open Access Journals)
  • JournalSeek
  • JournalTOCs
  • Open Science Directory

• arXiv.org
• DART-Europe E-theses Portal
• EBSCO Open Dissertations
• NDLTD (Networked Digital Library of Theses and Dissertations)
• OATD (Open Access Theses and Dissertations)
• OpenDOAR (Directory of Open Access Repositories)
• ProQuest Dissertations & Theses
• Undergraduate Research Commons
• Zenodo
• Εθνικό Αρχείο Διδακτορικών Διατριβών (ΕΑΔΔ)
• KETlib (Πανεπιστήμιο Πειραιώς)
• OpenDOAR - Greece
• OSF Preprints
• Preprints

• Ανοικτή Βιβλιοθήκη Openbook
• CORDIS (Community Research and Development Information Service)
• Internet Archive
• Ecological Marine Unit Explorer
• NASA
• NASA Science
• Nasa Sea Level Change
• NOAA
• Oceans
• OPEN Library
• Scripps Institution of Oceanography
• Woods Hole Oceanographic Institution (WHOI)
• European Atlas of Seas