Search engines, meta-search engines and directories

Collection of multidisciplinary and thematic search engines, meta-search engines and directories that can help to find resources and materials for projects or teaching.

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Directory of online reference works that allow you to navigate by document type.
LOC Virtual Reference Shelf
Directory of resources selected by the United States Library of Congress.
iSeek education
Indexes authoritative sources from universities, official institutions and non-commercial resource providers.
Meta-search engine that displays results in groups.
Open search engine for materials from catalogues of libraries that belong to WorldCat.
Multilingual directory with open content, originally known as Open Directory Project (ODP).


Microsoft Academic
Search engine that allows you to search by knowledge area and to find lists of authors, journals and conferences.
Google Scholar
Search engine for articles and academic publications that allows you to carry out an advanced search.
ERIC (Educational Resources Information Center)
Database specialized in education offering access to more than 1.4 million bibliographic records.
Get the research
A free search engine that helps people find and understand papers in open access published around the world.

Economics and Business

IDEAS: Economics and finance research
Extensive bibliographic database on economics and finance.


Health on the Net
Health resource directory and search engine.

STEM (Science, Technology, Engineering and Mathematics)

Subject gateway in the field of applied and life sciences.
SciELO (Scientific Electronic Library Online)
Database of scientific repositories where the Latin American territorial sphere is prioritized.


In the case of open educational resources (OER), search engines facilitate the use and reuse of academic and teaching materials.
OER Search engines
This dossier contains the leading open educational resource search engines, both general and for the UOC’s...
Audiovisual Open Resources for work and learning projects
Tools for creating infographics and conceps maps, as an effective way to explain complex concepts.