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  1. Wikipedia, the free encyclopedia

    Wikidata Free knowledge base Wikiversity Free learning resources Wikiquote Free quote compendium MediaWiki Free & open wiki software Wikisource Free content library Wikispecies Free species …

  2. Wikipedia | Definition, Encyclopedia, History, & Facts ...

    Dec 7, 2025 · Wikipedia uses collaborative software known as a wiki that facilitates the creation and development of articles. Although some highly publicized problems have called attention to Wikipedia …

  3. wiki - Wiktionary, the free dictionary

    Dec 17, 2025 · Noun wiki (plural wikis) A collaborative website which can be directly edited merely by using a web browser, often by anyone who has access to it.

  4. Wikipedia, the free encyclopedia

    Commons Free media repository MediaWiki Wiki software development Meta-Wiki Wikimedia project coordination Wikibooks Free textbooks and manuals Wikidata Free knowledge base

  5. Wikipedia - Wikipedia

    In 2003, economics PhD student Andrea Ciffolilli argued that the low transaction costs of participating in a wiki created a catalyst for collaborative development, and that features such as allowing easy …

  6. Wiki | Definition & Facts | Britannica

    Nov 17, 2025 · wiki, website that can be modified or contributed to by users. Wikis can be dated to 1995, when American computer programmer Ward Cunningham created a new collaborative technology for …

  7. Wikipedia - Wikipedia, the free encyclopedia

    Aug 17, 2020 · Wikipedia Template:Notetag is a free multilingual online encyclopedia written and maintained by a community of volunteers, known as Wikipedians, through open collaboration and …