The MLA Bibliography indexes materials on literature, languages, linguistics, film and folklore, excluding book reviews. Access to citations from journals and series published worldwide, as well as books, essay collections, and dissertations.

The primary resource to find resources on history. Covers scholarly literature published between 1955 and the present. Materials in many languages are indexed.

Indexes articles on medieval subjects in journals, Festschriften, conference proceedings, and collected essays. Covers all aspects of medieval studies within the period 450-1500 for Europe, the Middle East, and North Africa.

Indexes world's leading journals in political science with over 110,000 records from over 1000 journals published from 1951 to the present. Approximately 8,000 new records are added to the database each year. Searchable in multiple languages.

Indexes public affairs literature including political, economic and social issues. It contains references to articles, books, government documents, statistical directories, research reports, conference reports and publications of international agencies.

Comprehensive search of thousands of journal articles

The topics covered include political institutions, processes, and behavior; international law and politics; public policy; public administration; political theory; and political economics. 1975-present

A massive bibliography of more than 1.1 million citations for secondary source material about the European Middle Ages and Renaissance, 400-1700.

Articles, conference papers, book chapters, dissertations and other documents in the social sciences and humanities mainly published in Spain, but also in Latin America. (2001- to presents)

The Web Archive of Catalonia, created by the Biblioteca de Catalunya: the public institution responsible for collecting, preserving and distributing the bibliographic heritage of Catalonia, in Spain.

Displays and disseminates from a single place the research activity that is carried out in Catalonia in regard to researchers, publications, groups and research projects for the international scientific community, companies, financial organizations and public in general.

RACO (Catalan Journals in Open Access) is a cooperative repository with the full-text from articles of scientific, cultural and scholar Catalan journals.

Bibliographical database of works published on Catalan language and literature

Portal to open access journals published by the Universidad Complutense Madrid. Journals span a variety of subject areas in the Humanities, Social Sciences and Sciences.

Online access to over 2 million dissertations and master's theses, most of which are available in full text.

Base de datos que recoge y permite recuperar información de las tesis doctorales registradas en las universidades españolas desde 1976.