Five edits are made on Wikipedia every second, and automation tools can often catch and revert inaccurate edits within 60 seconds.

Nearly 300,000 volunteers worldwide help write, edit, and fact-check articles on the site in real-time, striving to ensure content is authored from a neutral point of view. All pages are freely accessible and must include citations to reliable, published sources.

The largest Wikipedia language edition features over 7 million articles, followed by the Cebuano edition (over 6 million) and the German edition (over 3 million). The longest article is the "2025 in women's road cycling" page, and the most edited is the list of personnel from World Wrestling Entertainment.

Unlike a journal article, which may be reviewed by up to three people before publication, popular Wikipedia pages may be reviewed thousands of times by editors, potentially enhancing their reliability. Less reviewed articles still require reliable third-party sources and remain subject to verification by bots and administrators who can undo edits.

Computer programmer Ward Cunningham created the WikiWikiWeb online application based on an offline system that helped track how ideas moved through his company. The application enabled users to collaborate and edit website content through a web browser, as well as link pages without requiring a structured navigation scheme.

In the early 2000s, the nonprofit free encyclopedia Wikipedia launched and became one of the most visited sites on the internet. This lengthy interview with cofounder Jimmy Wales provides insight into how the encyclopedia originated, how it is funded, its plans for the future, and a number of other facts about the hugely influential resource.

Battles over grammar and capitalization, names and nationalities, and British versus American spellings of words have taken place due to the collaborative editing nature of the site. The most seemingly trivial debates are catalogued on the site's "Lamest edit wars" page.

As of 2025, Steven Pruitt—known online as Ser Amantio di Nicolao—has made over 6 million edits and created more than 33,000 articles since he began contributing to the site in 2004. The Virginia native was named one of Time magazine's 25 most important people on the internet in 2017.

From January 2024 to April 2025, the site's bandwidth increased by 50% as automated bots downloaded terabytes of data for the large language models powering AI tools. The Wikimedia Foundation found that bots accounted for 65% of the highest demand requests (e.g., videos) despite representing just 35% of page views.

Alphabet Inc.'s Google search engine and YouTube received nearly 150 billion combined visits in November, followed by Facebook, ChatGPT, and Instagram, which each received over 5 billion visits during the same span. With 4.42 billion visits for the month, Wikipedia ranked just behind Reddit's 4.85 billion.

Nupedia was launched in 2000 by internet entrepreneur Jimmy Wales and internet project developer Lawrence Sanger, only publishing articles written by experts after a cumbersome seven-step review process. The two developed Wikipedia to allow the public to write articles for future review, but shifting to self-moderation contributed to Sanger's departure in 2002.

The record had been held for approximately six centuries by the Yongle Encyclopedia, which was commissioned by the Yongle Emperor of the Ming dynasty in 1403 to preserve information from ancient and imperial China. The text comprised 22,937 manuscript rolls in 11,095 volumes.

Like Wikipedia, volunteers around the world contribute to Wikivoyage, Wikispecies, and Wikimedia Commons to create freely accessible repositories of knowledge. Other projects include Wikibooks, a collection of e-books and annotated texts; Wikisource, which features source documents and historical texts; and Wiktionary, a dictionary covering over 170 languages.

Launched nine months earlier, the site was featured on Yahoo's news page, attracting traffic from information seekers as dozens of new editors created hundreds of articles, including memorials, conspiracy theories, and donation and volunteer pages. Discussions between editors would begin establishing rules for handling breaking news events.

A 2024 study by the University of Barcelona found that 71.4% of all English biographies that appear on the front page are about men, and approximately one in five editors are women. Researchers suggest systemic imbalances in society further diminish women's contributions to the site by leaving them with less time to defend edits during editorial disputes.

Labeled as "humorous" on the site, the "Last topic pool" page lists various conditions where Wikipedia's final article would be written, including various end-of-the-world scenarios, instances where humanity might cease to exist, cases of Wikipedia becoming corrupted or uneditable, and the possibility of all possible knowledge having been written about.

Wikipedia's vast trove of information can be a bit dull to navigate. This homemade website takes real Wikipedia pages and places them in a swipeable format similar to TikTok, so you can learn about very random things in a similar mode as the culture-shifting TikTok app. Check it out here.

Studies from Nature, The Guardian, the Journal of Clinical Oncology, and the Canadian Library Association, among others, did not identify significant errors, particularly in articles related to academic topics. The site is still considered an exploratory, tertiary source subject to systemic biases from its human editors, especially within controversial topics.

Since its founding in 2003, the nonprofit has provided financial, legal, and infrastructure support to Wikipedia and its sister projects (e.g., Wikinews), primarily by managing donations, which average $11, from readers. Additional funding comes from gifts exceeding $1,000, the Wikimedia Endowment, and providing Wikipedia content for commercial use.

Wikipedia, the free, community-built encyclopedia, uses hyperlinks so users can explore topics within topics. This tool often leads readers to go down endless rabbit holes, from one topic to another, endlessly. Now, you can make a game of it by...

Created from fiber and resin, the $14,000 sculpture features four people holding the Wikipedia globe—the company's logo since 2003. An inscription on the monument pays homage to the anonymous editors who contributed to the site.

LonelyWiki calls itself a museum of forgotten knowledge. A "lonely article" features real prose, at least 500 characters, no stub placeholders, and under 2,000 annual views. Each one represents a person who decided something was worth documenting without editorial commission or trending news.

The Chinese language version of the site had been blocked intermittently since 2004 due to pages featuring topics deemed controversial by the Chinese communist party, including the 1989 Tiananmen Square protests and Taiwan. Once Wikipedia switched to an HTTPS protocol—making it impossible to block individual pages—all Wikipedia pages were blocked.

Enter any two topics (or use suggestions) and find the shortest path of links between them. The game playfully illustrates the vast interconnections of human knowledge.

Written by user Elf in 2004, the song's humorous lyrics highlight the efforts of volunteer editors and describe an evening spent by "wikipediholics" improving the site, set to the backdrop of the Eagles' 1976 song.

A main-belt asteroid previously labeled 274301 was renamed "Wikipedia" by the Committee for Small Body Nomenclature. First observed in 2008 by astronomers at the Andrushivka Astronomical Observatory, the asteroid was renamed based on a suggestion from a member of the Wikimedia Foundation in Ukraine.

In 2003, the site held a contest for its users to submit designs for a new logo. Paul Stansifer submitted the winning design, which used the incomplete puzzle as a symbol for the encyclopedia being a work in progress. Symbols and letters would later replace text within Stansifer's colorful design.

Multiple Wikipedia articles can be placed on the map, each with its own node, and expanded to reveal related articles. The goal is to expand as many subsequent nodes as needed to connect articles and identify related concepts. Any node can be double-clicked on to open its respective Wikipedia page.

Developed by xAI—a company Musk founded in 2023 to compete with OpenAI and Google—the site features a search bar where users can type in queries, which reports suggest are then answered by the same xAI model powering the Grok chatbot. Grokipedia describes Wikipedia as having "systemic ideological biases" and a "left-leaning slant."

The quirky pastime has evolved into a competitive event at yearly Wikimedia conferences, highlighting the interconnectedness of human knowledge. Neuroscientific research suggests lateral thinking is a crucial skill found in successful Wikiracers.

Rename.world is a playful, community-driven project where users discover, claim, and rename locations across a live global map. It's kind of like Wikipedia meets Google Maps, filtered through the internet's love of chaos and whimsy.

The study also found that pages using AI narrow the range of ideas and perspectives and skew more positively, though the measurable impacts on factual accuracy and writing style variation remain unclear.

About half this time consists of content from social media platforms, where the average user spends about 18.5 hours weekly. An estimated $3.66T was spent on consumer goods by online shoppers in 2025, though nonconsumer goods, such as flights and hotel stays, greatly increase this estimate.

Taking cues from Wikipedia, this Setlist wiki allows fans and concertgoers to share which songs were actually played at live concerts, across genres. The database makes this niche information about what performers choose to play year-round available for the curious.

The hyperactive online forum and social media platform has transformed since 2006 from a simple link-sharing site to a behemoth in digital media. Topping off its ascendancy, Reddit went public on the New York Stock Exchange in 2024, solidifying its future amid a shifting technological climate. Dive into Reddit's nearly two decades of growth with this detailed timeline.

Founded in 1996, the Archive promotes open access and the digital preservation of online information and, as of 2026, contains more than 200 petabytes of content, including over one trillion web pages, 56 million books and texts, 13 million audio recordings, 1.3 million software programs, and other digital content.

Crawlers are programs that automatically browse the internet for links and index pages for search engines to pull up when page content matches search queries. Networks of global data centers also create copies of content as fail-safes for potential failures to ensure access isn't ever lost.

YouTube began as a quirky site where users uploaded funny, random videos—a do-it-yourself television service. Today, it’s a global media powerhouse and home to everything from movie trailers to video podcasts, livestreams, and much more. Want to learn more about the streaming giant? Check out our 5-minute explainer here.

The internet was officially born in 1983 and had more than 150 million global users by 1997, creating an international web of seemingly separate networks. This data visualization shows the growth of the internet from 1997 to 2021. Data in this...

Invented by Tim Berners-Lee in 1989 while working at CERN—home of the world's largest particle physics laboratory—the Web was developed to facilitate the sharing of information among scientists at institutions worldwide. By the end of 1990, the first Web server was operational as a proof-of-concept on a NeXT workstation.

America Online's homepage was the most popular website through mid-2021, when the Yahoo homepage took over and, shortly afterward, became the first website to reach 1 billion monthly visits. It would not be dethroned until early 2006 by Google, a major player in the search engine market.

The World Wide Web began as read-only, static webpages on Web 1.0, where data could not be entered. With Web 2.0, the online interface became a read-write space for data entry, post creation, and forum participation, among other activities. Web3 is intended to be decentralized, user-owned, and built on blockchain technology.

AlternateHistory.com has hosted fan-written "what if" timelines, discussions, and speculative fiction since 2000, making it the largest online gathering of alternate history enthusiasts, with over 10,000 active members and a wiki cataloging hundreds of user-created scenarios. Two highlights to pique your interest: what if the Vikings had settled North America? What would have had to happen for the storyline of George Orwell's "1984" to come true?

As of 2025, an estimated 5.01 billion people use Google Search worldwide, with over 20% of activity conducted via voice search. "YouTube" is the most searched term, with an average monthly search volume of over 375 million.

AI, as a concept, has been around since at least the 1950s, but it's only in the last year or so that the technology has been able to equal humans at many tasks -- and in many cases surpass humans. In this podcast, mathematician and computer scientist Stephen Wolfram provides an AI 101, explaining how we got here, how highly advanced chatbots like ChatGPT work, and what our world is in store for next.

How did YouTube grow from a startup in 2005, to a media powerhouse with more than 2.5 billion monthly logged-in users who watch more than 1 billion hours of video every day? That’s what this podcast interview with Bloomberg tech reporter Mark Bergen on NPR’s Fresh Air explores.

Google processes over 8.5 billion searches every day—more than the number of people on Earth. This short breakdown covers how the company evolved from a Stanford research project into a global tech leader, with products like YouTube, Gmail, and Android reaching billions worldwide.

The past few millennia of humankind have produced numerous figures who left their mark on culture and society in their respective era. This interactive timeline from data visualization expert Jan Willem pulls data from Wikipedia to illustrate history's most important people relative to their prominence in modern-day thought.