EThOS is the UK’s national thesis service which provides: • A national aggregated record of all doctoral theses awarded by UK Higher Education institutions • Free access to the full text of as many theses as possible for use by all researchers to further their own research.

Provides the member states of the European Union and non-EU countries with statistical information and data on area and population, economy, employment and labor costs, transport, tourism, external trade, etc.

With Goethe-Institute open access search, you have access to about 3 million freely accessible scientific online publications in various languages (mainly German and English, but also in other languages).

A site provided by the Census and Statistics Department of the Hong Kong Government.

The Networked Digital Library of Theses and Dissertations (NDLTD) is an international organization dedicated to promoting the adoption, creation, use, dissemination, and preservation of electronic theses and dissertations (ETDs), supports electronic publishing and open access to scholarship in order to enhance the sharing of knowledge worldwide. Over 6 millions electronic theses and dissertations contained in the NDLTD archive.

OATD currently indexes 6,714,781 theses and dissertations which comes from over 1100 colleges, universities, and research institutions.

OALib is currently hosting links and metadata to more than 4,232,777 open access articles covering a wide range of academic disciplines. All full text articles from your search results are free to download.

The OAPEN Library contains freely accessible academic books, mainly in the area of Humanities and Social Sciences. OAPEN works with publishers to build a quality controlled collection of Open Access books, and provides services for publishers, libraries and research funders in the areas of dissemination, quality assurance and digital preservation.

SpringerOpen is Springer's portfolio of fully open access journals and books, covering all areas of science. The entire content published with SpringerOpen is freely accessible online immediately upon publication. SpringerOpen views open access to research as essential in order to ensure the rapid and efficient communication of research findings.

World Development Indicators Online provides direct access to more than 600 development indicators, with time series for 208 countries and 18 country groups from 1960 onwards.

The UNESCO Digital Library is the repository of UNESCO’s institutional memory and a source of high-quality information on UNESCO activities (in education, natural sciences, social and human sciences, culture, and communication and information), with more than 350,000 documents dating back to 1945.

「港澳中文期刊論文索引」目前主要收錄在香港及澳門出版的中文、雙語期刊。內容以人文科學及社會科學為主。引用的期刊共超過三百種；大部份期刊之索引資料從1980年開始。收錄最早之期刊為香港第一份中文刊物《遐邇貫珍》(1853年8月1日出版)。「索引」除具備多項基本檢索功能外，亦提供部分文章的電子全文連結，方便讀者作教學及學術研究之用，無礙地域限制。