ResearchGate
ResearchGate was built by scientists, for scientists. It started when two researchers discovered first-hand that collaborating with a friend or colleague on the other side of the world was no easy task.
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.
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 peerreviewed online journals of Europe and America's largest scholarly publishers, plus scholarly books other nonpeer reviewed journals.
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ResearchGate was built by scientists, for scientists. It started when two researchers discovered first-hand that collaborating with a friend or colleague on the other side of the world was no easy task.
Free Web
Microsoft Academic Search is an experimental research service developed by Microsoft Research to explore how scholars, scientists, students, and practitioners find academic content, researchers, institutions, and activities.
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A repository of article references and research paper topics for students and research scholars.
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ACI is revolutionizing the way people conduct research by enabling them to find the content they’ve been missing.
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Application for searching for and reading academic papers.
Commercial
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...
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