ProQuest Dissertations and Theses: Global (PQDTGlobal) is the world's most comprehensive collection of full-text dissertations and theses. As the official digital dissertations archive for the Library of Congress and as the database of record for graduate research,
World Dissertation Library selecting high-quality academic doctoral theses. Collecting dissertations form key universities around the world, with over 90% of the top 100 universities covering major countries and regions worldwide. This database includes over 3 Millions of 2000+ educational institutions.
EBSCO Open Dissertations now includes the content from American Doctoral Dissertations. It is a free database with records for more than 1.4 million electronic theses and dissertations from more than 320 universities around the world.
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.
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.