Wikis have revolutionized the way information is shared online. A wiki is a collaborative platform that allows multiple users to add, edit and delete content. The idea behind the wiki was originally to allow users to work on documents together, but today wikis are used for much more than that. Some of the most popular wikis are used as encyclopedias, recipe books, and even for project management.

Here are some of the most popular wiki sites and wiki examples worth checking out:

Wikipedia: Wikipedia is the most popular wiki site on the internet today. It started as an online encyclopedia and has grown into a massive database of information. Wikipedia is now the go-to reference for many people around the world, and it is translated into more than 300 languages. The site has over six million articles covering everything from popular culture to scientific research.

Wikimedia Commons: Wikimedia Commons is a database of images, sound, and video files that are free for anyone to use. The site has over 70 million files that can be used in educational and creative works. The creative commons licensing system used by Wikimedia Commons ensures that users can share and reuse files with minimum restrictions.

Wikibooks: Wikibooks is a site that allows users to create and share instructional textbooks. Wikibooks has a wide variety of topics that are covered, including languages, computer programming, and natural sciences. The site is unique in that it allows users to create their own textbooks and edit existing ones.

Wikitravel: Wikitravel is a collaborative site that features travel guides for various destinations around the world. The site has over 24,000 articles covering topics like accommodation, food, and activities. Wikitravel is a great resource for travelers looking to plan their next adventure.

WikiHow: WikiHow is a site that provides how-to guides for nearly any topic you can imagine. The site has over 180,000 articles covering topics like cooking, home repairs, and personal growth. WikiHow is a great resource for people looking to learn new skills or improve existing ones.