wikiHow — to do anything – "the world's collaborative how-to manual" that you can edit, is a wiki for the world's largest how-to manual. The wikis all use the popular MediaWiki software, but they are heavily modified with a custom skin and GoogleAds. The wiki content is released under the Creative Commons Attribution NonCommercial Share Alike 2.5 license. wikiHow claims to be a "carbon neutral website".
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