Search Engines

Directory of the top search engines, meta search engines, and scholarly research tools from Baidu and Bing to Yandex and Yahoo.

  • Bing
    Second most popular search engine in the United States developed by Microsoft.
  • Google
    Preeminent search engine indexing billions of pages. - Also see: Google Books, Google Scholar
  • Yahoo!
    Widely used search engine powered by Bing.

Meta Search Engines

  • Carrot2
    Open source meta search, clustering, and search visualization engine.
  • DuckDuckGo
    Search service with a clean interface and an emphasis on user privacy.
  • iseek
    Clustering and meta search engine by Vantage Research.
  • Qwant
    EU-based and privacy-focused search engine with its own indexing engine.
  • Startpage
    Combines the top results of multiple engines--primarily Gigablast and Yandex.
  • Yippy
    Meta search and semantic clustering engine by Vivisimo.

Academic Search Engines

  • BASE
    Operated by Bielefeld University Library, BASE provides an index of over 100M documents.
  • Instagrok
    Innovative search service that surfaces key facts, relationships, and quizzes from results.
  • OpenMD
    Health search engine spanning medical organizations and government databases.
    openmd - Also see: Health Site Directory
  • RefSeek
    Web and document search engine for students and researchers. - Also see: Document Search
  • ResearchGate
    Search large volumes of self-published scientific research material.

International Search Engines

  • Baidu
    Leading search engine in China.
  • Yandex
    Russia's most popular search engine for web, news, and media.