Search Engines

Meta Search Engines

  • Carrot2
    Open source meta search, clustering, and search visualization engine.
    carrot2.org
  • DuckDuckGo
    Search service with a clean interface and an emphasis on user privacy.
    duckduckgo.com
  • ixquick
    Combines the top results of multiple engines--primarily Gigablast and Yandex.
    ixquick.com
  • iSEEK
    Clustering and meta search engine by Vantage Research.
    iseek.com
  • Yippy
    Meta search and semantic clustering engine by Vivisimo.
    yippy.com

Academic Search Engines

  • BASE
    Operated by Bielefeld University Library, BASE provides an index of over 100M documents.
    base-search.net
  • Instagrok
    Innovative search service that surfaces key facts, relationships, and quizzes from results.
    instagrok.com
  • RefSeek
    Web and document search engine for students and researchers.
    refseek.com - Also see: Document Search
  • ResearchGate
    Search large volumes of self-published scientific research material.
    researchgate.net

International Search Engines

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