Open Access Portals and Institutional Archives

• • OpenDOAR
  • European History Primary Sources
  • WWW Virtual Library History Central Catalogue 
  • MDPI - Open Access Publishing
  • Scientific Research
  • Zenodo

e-Journals

• • TÜBİTAK-ULAKBİM Sosyal ve Beşeri Bilimler Veri Tabanı (SBVT)
  • Directory of Open Access Journals (DOAJ)
  • Gallica (Bibliothèque Nationale de France)
  • Retrodigitized Journals 
  • SciELO: Scientific Electronic Library Online 
  • ERIC: Education Resources Information Center
  • Gateway For Free E-journals
  • Internet Library of Early Journals
  • JURN
  • Library of Congress, Electronic Journals Library
  • Wiley Open Access
  • Open Access Journals Search Engine for Sociology
  • BASE (Bielefeld Academic Search Engine)
  • Yale Journal of Sociology 
  • Sociation Today 
  • Cultural Anthropology 
  • The SAA Archaeological Record
  • British Academy for the Humanities and Social Sciences
  • Open Journal of Business and Management
  • Open Journal of Leadership
  • Open Journal of Political Science
  • Open Journal of Modern Linguistics
  • Open Journal of Philosophy
  • Social Sciences Directory

Research Reports and Statistics

• • Türkiye İstatistik Kurumu
  • European Data Center: For Work and Welfare 
  • World Bank : WDI Online (World Development Indicators)
  • International Statistical Agencies
  • International Monetary Fund
  • RePEc (Research Papers in Economics) 
  • ARENA Centre for European studies
  • Centre for European Policy Studies (CEPS)
  • Centre for European Reform (CER)
  • London School of Economics - European Institute 
  • Network of Excellence on Global Governance, Regionalisation and Regulation (Garnet)

e-Books

• • Directory of Open Access Books (DOAB)
  • Internet Archive Digital Books Collection
  • OAPEN: Open Access Publishing in European Networks
  • Project Gutenberg 
  • Authorama : Public Domain Books
  • Cascadilla Proceedings Project
  • E-Books Directory
  • Page By Page Books
  • Open Library
  • Digital Book Index

e-Thesis

• DART Europe E-thesis Portal
• EThOS: electronic theses online service  (access to UK theses)
• Gutenberg-e 
• Yükseköğretim Kurulu Ulusal Tez Merkezi
• NDLTD: Networked Digital Library of Theses and Dissertations
• Merkez Bankası Uzmanlık Tezleri
• İçişleri Bakanlığı Tezleri
• DPT Uzmanlık Tezleri
• Australian Digital Theses Program
• Florida State University Electronic Theses and Dissertations
• OhioLINK Electronic Theses and Dissertations Center
• Worldwide Electronic Theses and Dissertations Index
• Theses Canada Portal
• Tilburg University PhD Thesis Series 
• Open Thesis
• Open Access Thesis and Dissertations
• The Universal Index of Doctoral Dissertation in Progress

e-Dictionaries and e-Encyclopedias

• Cambridge Dictionaries Online
• Dictionary of Art Historians
• Finance Glossary
• New Palgrave Dictionary of Economics Online
• Encyclopedia of Law Economics
• Encyclopedia of Psychology
• Stanford Encyclopedia Of Philosophy
• Country Reports.Org 

Audio Books

• LibriVox: Free Audio Books
• Barnes & Noble Free Audio Books
• Gutenberg: Audio Books Project