Many visitors come to Wikipedia to acquire knowledge, while others come to share knowledge. At this very instant, dozens of articles are being improved, and new articles are also being created. Changes can be viewed at the Recent changes page and a random page at random articles. 6,024 articles have been designated by the Wikipedia community as featured articles, exemplifying the best articles in the encyclopedia. Another 35,261 articles are designated as good articles. Some information on Wikipedia is organized into lists; the best of these are designated as featured lists. Wikipedia also has portals, which organize content around topic areas. Articles can be found using the search box on the screen's top-right side or, if using the Monobook skin, a bit lower along the left-hand side.

Wikipedia is available in languages other than English. Wikipedia has more than 300 languages, including a Simple English version, and related projects include a dictionary, quotations, books, manuals, scientific reference sources, a travel guide, a data repository, and a news service (see sister projects). All these are maintained, updated, and managed by separate communities and often include information and articles that can be hard to find through other common sources.