Academic Search Complete (EBSCO)
Multi-disciplinary database including agriculture, ecology, plant biology, forestry and more.
Annual Reviews
Multi-disciplinary database including ecology, plant biology and others
Applied Technologies and Innovations
Multi-disciplinary database including agriculture, ecology, chemistry, biology, forestry and more.
BioMed Central
Multi-disciplinary database including ecology, environmental sciences.
Cambridge Core
Multi-disciplinary database including ecology, agriculture.
De Gruyter leidyklos elektroninės knygos
Multi-disciplinary database including ecosystems, landscape design and more.
eBooks on ScienceDirect

Multi-disciplinary database including ecology, biochemistry, forestry, agriculture and more.
EBSCO eBook Academic Collection

Multi-disciplinary database including ecology, forestry, agriculture and more.
Knowledge Unlatched
Multi-disciplinary database including ecology, biochemistry, forestry, agriculture and more.
MasterFILE Premier (EBSCO)

Multi-disciplinary database including ecology, environmental protection, forestry and more.
MDPI
Multi-disciplinary database including agriculture, ecosystems, agroengineering and more.
Nature
Multi-disciplinary science journal.
OAPEN (Open Access Publishing in European Networks)

Multi-disciplinary database including ecology, environmental sciences, agriculture, forestry and more.
Online Books Page

Multi-disciplinary database including ecology, agriculture and more.
Open Textbook Library
Multi-disciplinary database including agriculture, ecology
PANGAEA
Multi-disciplinary database including agriculture, ecology, plant biology, environmental protection, forestry and more.
Project MUSE ebooks
Multi-disciplinary database including ecology, plant biology and others
Science Publishing Group (Science PG )
Multi-disciplinary database including ecology, environmental engineering and more.
Springer EBooks Collections

Multi-disciplinary database including ecology, forestry, agriculture and more.
Multi-disciplinary database including agriculture, ecology, plant biology, forestry and more.
Annual Reviews
Multi-disciplinary database including ecology, plant biology and others
Applied Technologies and Innovations
Multi-disciplinary database including agriculture, ecology, chemistry, biology, forestry and more.
BioMed Central
Multi-disciplinary database including ecology, environmental sciences.
Cambridge Core
Multi-disciplinary database including ecology, agriculture.
De Gruyter leidyklos elektroninės knygos
Multi-disciplinary database including ecosystems, landscape design and more.
eBooks on ScienceDirect
Multi-disciplinary database including ecology, biochemistry, forestry, agriculture and more.
EBSCO eBook Academic Collection
Multi-disciplinary database including ecology, forestry, agriculture and more.
Knowledge Unlatched
Multi-disciplinary database including ecology, biochemistry, forestry, agriculture and more.
MasterFILE Premier (EBSCO)
Multi-disciplinary database including ecology, environmental protection, forestry and more.
MDPI
Multi-disciplinary database including agriculture, ecosystems, agroengineering and more.
Nature
Multi-disciplinary science journal.
OAPEN (Open Access Publishing in European Networks)
Multi-disciplinary database including ecology, environmental sciences, agriculture, forestry and more.
Online Books Page
Multi-disciplinary database including ecology, agriculture and more.
Open Textbook Library
Multi-disciplinary database including agriculture, ecology
PANGAEA
Multi-disciplinary database including agriculture, ecology, plant biology, environmental protection, forestry and more.
Project MUSE ebooks
Multi-disciplinary database including ecology, plant biology and others
Science Publishing Group (Science PG )
Multi-disciplinary database including ecology, environmental engineering and more.
Springer EBooks Collections
Multi-disciplinary database including ecology, forestry, agriculture and more.
Britannica Online
Encyclopedia
Dictionary.com
Virtual dictionary.
Eurovoc
Multilingual thesaurus.
Thesaurus.com
General vocabulary indicating semantic word connections.
Encyclopedia
Dictionary.com
Virtual dictionary.
Eurovoc
Multilingual thesaurus.
Thesaurus.com
General vocabulary indicating semantic word connections.
Academic Index 
Scientific information search system.
BASE (Bielefeld Academic Search Engine)
One of the largest search engines performing search in open access scholarly resources.
DOAB (Directory of Open Access Books)

DOAB is a community-driven discovery service that indexes and provides access to scholarly, peer-reviewed open access books and helps users to find trusted open access book publishers.
DOAJ (Directory of Open Access Journals)

Community-curated online directory that indexes and provides access to high quality, open access, peer-reviewed journals.
FreeFullPDF

Open access scholarly search engine.
Google Scholar

Search engine providing search across many disciplines and sources: articles, theses, books, abstracts and court opinions from academic publishers, professional societies, online repositories, universities and other websites.
Lithuanian Academic Electronic Library (eLABa)
This search gate is an integrated search system allowing search in Lithuanian academic libraries and other databases.
Open Access Theses and Dissertations (OATD)

Final theses of world science and study institutions.
Open Dissertations (EBSCO)

More than 1.2 million e-theses and dissertations from around the world (from the beginning of the 20th century to the present day).
Scientific information search system.
BASE (Bielefeld Academic Search Engine)
One of the largest search engines performing search in open access scholarly resources.
DOAB (Directory of Open Access Books)
DOAB is a community-driven discovery service that indexes and provides access to scholarly, peer-reviewed open access books and helps users to find trusted open access book publishers.
DOAJ (Directory of Open Access Journals)
Community-curated online directory that indexes and provides access to high quality, open access, peer-reviewed journals.
FreeFullPDF
Open access scholarly search engine.
Google Scholar
Search engine providing search across many disciplines and sources: articles, theses, books, abstracts and court opinions from academic publishers, professional societies, online repositories, universities and other websites.
Lithuanian Academic Electronic Library (eLABa)
This search gate is an integrated search system allowing search in Lithuanian academic libraries and other databases.
Open Access Theses and Dissertations (OATD)
Final theses of world science and study institutions.
Open Dissertations (EBSCO)
More than 1.2 million e-theses and dissertations from around the world (from the beginning of the 20th century to the present day).
AGRICOLA (AGRICultural OnLine Access)
Records describe publications and resources encompassing all aspects of agriculture and allied disciplines, aquaculture and fisheries, farming and farming systems, agricultural economics, food and human nutrition earth and environmental sciences and more.
AIMS (Agricultural Information Management Standart)
The Agricultural Information Management Standards Portal (AIMS) of the Food and Agricultural Organization of the United Nations (FAO) gathers information on (and access to) standards, technology and best practices. It is also a forum connecting information management workers around the world to discuss open access and open data.
Environmental News Network

New about flood risk, ecosystems, climate, energy, pollution, agriculture, green building, green energy and more.
FAO (The Food and Agriculture Organization of the United Nations)

Publications of the agriculture, forestry, ecology).
International Union for Conservation of Nature

The International Union for Conservation of Nature (IUCN) is a membership of government and civil society organizations. Together, they work to promote sustainable development and create a just world where nature is protected.
Scite

The artificial intelligence-powered platform that helpst researchers better discover and evaluate scientific articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contradicting evidence.
The World Bank Open Knowledge Repository

The World Bank’s official open access repository for its research outputs and knowledge products
Records describe publications and resources encompassing all aspects of agriculture and allied disciplines, aquaculture and fisheries, farming and farming systems, agricultural economics, food and human nutrition earth and environmental sciences and more.
AIMS (Agricultural Information Management Standart)
The Agricultural Information Management Standards Portal (AIMS) of the Food and Agricultural Organization of the United Nations (FAO) gathers information on (and access to) standards, technology and best practices. It is also a forum connecting information management workers around the world to discuss open access and open data.
Environmental News Network
New about flood risk, ecosystems, climate, energy, pollution, agriculture, green building, green energy and more.
FAO (The Food and Agriculture Organization of the United Nations)
Publications of the agriculture, forestry, ecology).
International Union for Conservation of Nature
The International Union for Conservation of Nature (IUCN) is a membership of government and civil society organizations. Together, they work to promote sustainable development and create a just world where nature is protected.
Scite
The artificial intelligence-powered platform that helpst researchers better discover and evaluate scientific articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contradicting evidence.
The World Bank Open Knowledge Repository
The World Bank’s official open access repository for its research outputs and knowledge products