Mendeley helps manage and share academic knowledge: Mendeley Desktop is free academic software (Windows, Mac, Linux) for organizing and sharing research papers and generating bibliographies with 1GB of free online storage to automatically back up and synchronize your library...
Google Scholar is a freely accessible web search engine that indexes the full text of scholarly literature across an array of publishing formats and disciplines. Released in beta in November 2004, the Google Scholar index includes most peer-reviewed online journals of Europe and...
Google Scholar vs ResearchGate opinions
A great quantity of papers with most papers being free
is a social networking website for academics. The platform can be used to share papers, monitor their impact, and follow the research in a particular field. It was launched in September08, with 31 million registered and over 8 million uploaded texts.
Semantic Scholar (paywall free) is a science publication aggregator that collects citation-data from PubMed, CiteSeer, IEEE etc and rank each article according to the percieved number of impactful citations.
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).
Elicit is a research assistant using language models like GPT-3 to automate parts of researchers’ workflows. Currently, the main workflow in Elicit is Literature Review. If you ask a question, Elicit will show relevant papers and summaries of key information about those papers...
DeepDyve provides simple and affordable access to millions of articles across thousands of peer-reviewed journals. Content from the world's leading publishers including Reed Elsevier, Springer, Wiley-Blackwell, and more.
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.
PubMed.gov vs ResearchGate opinions
many professional papers and studies that can be read for free (full text links available on the site)