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Wikipedia is a free, multilingual encyclopedia project operated by the non-profit Wikimedia Foundation. Its name is a portmanteau of the words wiki (a technology for creati...
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Wikimedia Commons is a media file repository making available public domain and freely-licensed educational media content (images, sound and video clips) to all. It acts as...
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Wiktionary (a portmanteau of the words wiki and dictionary) is a multilingual, Web-based project to create a free content dictionary, available in over 151 languages. Unlik...
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Wikiquote is a free online compendium of sourced quotations from notable people and creative works in every language, translations of non-English quotes, and links to Wikip...
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Wikiversity is a Wikimedia Foundation project which supports learning communities, their learning materials, and resulting activities. It differs from more structured proje...
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A free source of news, edited by the community.
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An educational tool on the Web
Wikibooks (previously called Wikimedia Free Textbook Project and Wikimedia-Textbooks) is a Wiki hosted by the Wikimedia Foundation for the creation of free content textbook...
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The 3rd most popular reference app on the iPhone
Wikipedia is now officially on the iPhone! This is Wikipedia's official application.
This app is focused on being very simple and very fast. Over time, we'll add features ...
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A network tool on Linux
weblinkchecker.py is a script from the Python Wikipedia Bot collection. The script finds broken external links.
weblinkchecker.py can either check all URLs found in a sing...