ResearchGate is described as 'Connects scientists to share papers, datasets, and findings, discover global research, track publications, and engage in scholarly discussion within a scientific network' and is an app in the education & reference category. There are more than 25 alternatives to ResearchGate for a variety of platforms, including Web-based, Windows, iPhone, iPad and Android Tablet apps. The best ResearchGate alternative is Mendeley, which is free. Other great apps like ResearchGate are Google Scholar, WorldCat, ResearchCollab and Academia.edu.
BASE is one of the world's most voluminous search engines especially for academic web resources. BASE provides more than 300 million documents from more than 10,000 content providers. You can access the full texts of about 60% of the indexed documents for free (Open Access).
Search engine for tens of millions of preserved research papers. This fulltext search index includes over 25 million research articles and other scholarly documents preserved in the Internet Archive.
OA.mg is a search engine for academic papers. Whether you are looking for a specific paper, or for research from a field, or all of an author’s works – OA.mg is the place to find it.
RefSeek is a web search engine for students and researchers that aims to make academic information easily accessible to everyone. RefSeek searches more than five billion documents, including web pages, books, encyclopedias, journals, and newspapers.
This project is a web interface that attempts to tame the overwhelming flood of papers on Arxiv. It allows researchers to keep track of recent papers, search for papers, sort papers by similarity to any paper, see recent popular papers, to add papers to a personal library, and...
Publish or Perish (PoP) uses Scopus, Crossref, Google Scholar, Microsoft Academic, and Web of Science queries to obtain citation information, which is then analysed and converted to a variety of metrics (see Appendix).
Thomson Reuters Web of KnowledgeSM is a research platform that gives you access to objective content and powerful tools to search, track, measure and collaborate in the sciences, social sciences, arts, and humanities.
CiteSeerx is an evolving scientific literature digital library and search engine that has focused primarily on the literature in computer and information science.
Web interface to access Yubetsu Shibata - The World's 11th Largest Scientific Database
DeepDyve is the company behind LitHub, an AI-powered literature-management platform offering researchers affordable, publisher-licensed access to scientific, technical, and medical research. Users can read 35M+ paywalled and 25M+ open-access papers and search a discovery index...
PubMed comprises more than 23 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.
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many professional papers and studies that can be read for free (full text links available on the site)