Microsoft Academic Search is described as 'Experimental research service developed by Microsoft Research to explore how scholars, scientists, students, and practitioners find academic content, researchers, institutions, and activities' and is an website in the education & reference category. There are more than 10 alternatives to Microsoft Academic Search, not only websites but also apps for iPhone, iPad and Windows. The best Microsoft Academic Search alternative is Google Scholar, which is free. Other great sites and apps similar to Microsoft Academic Search are Semantic Scholar, Scinapse, Arxiv Sanity Preserver and Publish or Perish.