The Internet Archive is a nonprofit digital library of the Web

Web crawlers and internet archives and back-ups limit perfect erasure of online data

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.

Virtually all public libraries in the US offer free internet access

Beyond providing internet access, libraries have also expanded into broad digital hubs for communities. Ninety percent offer basic digital literacy training, 76% help patrons navigate online government services, and 73% assist people with job applications.

View the ecosystem of global services, organizations, and agencies behind the internet

Through an open, transparent, and collaborative model built on open standards development and shared global ownership, the internet is kept freely accessible amid evolving international policies. Key organizations, such as IANA, which allocates IP addresses and fulfills administrative functions for the Domain Name System, function as non-profit organizations.

As of 2025, the Wikimedia Foundation funds 14 open-source, free knowledge projects

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.

Explore content on the dark web safely with the Ahmia search engine, which has provided activists with digital addresses to anonymously send files to media outlets.

See the original websites for companies like Google, Facebook, and Apple

Explore archived images of homepages on websites dating all the way back to 1991.

The funding behind Google's origin, including an NSF digital libraries grant

Over $4.5M in funding from the National Science Foundation was allocated to the Stanford Integrated Digital Library Project, which aimed to develop the infrastructure for an accessible universal library of digital information sources. Google cofounders Sergey Brin and Larry Page were working on this project when developing the PageRank search algorithm.

Court documents show that Anthropic bought and destructively scanned millions of books to gather high-quality text to train the software underlying its AI products.

A private repository of millions of FOIA-requested documents

The Black Vault is one of the largest privately run archives of declassified documents in the world. Explore UFO sightings, doorways on Mars, and more.

How the internet became the World Wide Web: a visualization

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...

An overview of the World Wide Web, which is often confused with the internet

When users create a website, they organize content and store it on a web server—one of various types of hardware that make up the internet—in web languages, such as HTML and JavaScript. When visiting the site, a web browser translates these languages into text and other media for consumption.

The origin of the World Wide Web, plus a look at its first website and web browser

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.

'Games That Weren't' preserves lost video game history

Since 1999, this large, online, nonprofit archive has saved the stories of cancelled and unreleased video games. See prototypes, developer history, and assets for various computers and consoles of all ages, including gems like Cartoon Network's "Toon Jam!"

A conversation with Wikipedia’s cofounder

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.

Get lost in these historical libraries

The internet has changed a lot about how we learn, explore new ideas, and conduct research, particularly when it comes to the spaces we learn in. While few of us would trade our smartphones for a walk in a historical library, a walk through some of the beautifully designed cathedrals of learning could remind us to put them down sometimes. Explore 10 of the world's magnificent libraries with this quick video survey.

The National Archives protects billions of historical documents, including the Declaration of Independence and the US Constitution.

This "60 Minutes" segment takes viewers behind the scenes at the National Archives, showcasing how experts use conservation science, security, and technology to preserve cornerstone records—such as the original Declaration of Independence—for future generations.

Newspaper headlines from a century ago today

The Library of Congress' Chronicling America project is dedicated to providing access to information about historic newspapers, with the goal of digitizing these windows into the country's past. This (among other archives) lets you explore a number of different local papers' front pages from a century ago on today's date.

The Whole Earth Catalog offered readers tools for healthy eating

The publication promised hippies "access to tools"—listings for "high quality or low cost" books, devices, and instructions for alternative living, including cultivating natural and organic foods. This archive comprises high-definition scans of nearly all materials published between 1968 and 2002.

Search the digital collections of over 4,000 art museums.

Safely explore historic viruses and other malicious software in the Malware Museum.

The dark web makes up about 0.01% of all the data on the internet

The surface web (5%-10%) consists of indexed sites—those traditional search engines have visited and stored so users can discover them via web search. The remaining 90%-95% makes up the deep web, which is not indexed and includes email and banking portals that require login credentials. The dark web is unindexed and requires anonymizing software to visit.

Google only sorts and searches a fraction of the overall internet

The "surface web," consisting of billions of public webpages, excludes nonindexed digital content, such as corporate intranets and email inboxes. A deeper layer, called the dark web, is also hidden and requires special software to access.

Thingiverse is a massive free library of 3D-printable designs

The site—which was launched in 2008 by 3D-printer manufacturer MakerBot—hosts more than 2 million user-generated design files to build everything from prosthetic hands to replacement dishwasher parts (or the "Golden Snitch" from "Harry Potter). The community behind it rapidly designed and shared files for face shields and ventilator components amid the COVID-19 pandemic.

Flip through centuries-old artifacts in this 3D library

Archaeology is hands-on work, giving researchers the ability to analyze artifacts from as many sides as possible to find marks left by those that came before us. While looking at pictures of artifacts gives you some insight, you're limited to...

A free archive of firsthand historical documents from explorers of America

Maintained by the Wisconsin Historical Society, the American Journeys collection contains more than 18,000 pages of primary source documents—journals, letters, maps, and accounts written between roughly 1000 CE and the early 1800s. These include eyewitness records of the Norse arrival in North America, Spanish conquistador expeditions, and the Lewis and Clark journey. Browse this list of highlights where pages from the original texts are specified (clicking a link opens a PDF).

The deep web accounts for 90-95% of the internet

Within the Deep Web is the small and hidden Dark Web, which is inaccessible via traditional web browsers. Dark Web inhabitants are anonymous and use special software to access encrypted websites that can assist with both free speech and criminal activity.

Washington DC's first public library, built in 1903, now operates as an Apple store

The Carnegie Library served as DC's central library until 1972, when overcrowding forced a move to the Martin Luther King Jr. Memorial Library. After sitting unused for five years, the building changed hands several times before Apple agreed to restore it and open a store there in 2016.

The Whole Earth Catalog provided an early blueprint for the social internet

The Whole Earth Catalog, a counterculture guide to alternative living, was a repository for hippie ideas. In 1985, its founder decided to bring Whole Earth to the nascent internet with the Whole Earth ‘Lectronic Link, or WELL, an early web forum.

Web3 is the successor to our current version of the Internet

Web1 (existing roughly from 1990 to 2005) was about decentralized and community-governed open protocols. Most of the value accrued to the edges of the network: users and builders. Web2 (roughly 2005 through 2020) was about siloed, centralized services run by corporations.

Explore internet usage data, including how humans consume 1.2 billion years of content yearly

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.

The software for wikis—user-editable websites—was launched in 1995

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.

Explore the unexpected ways people use public libraries in this 'This American Life' episode

Libraries serve as far more than book repositories. This episode follows a family experiencing homelessness that spent months living in their local library, Iranian students reuniting with family across the US-Canada border because the library straddled both countries, and a Vermont man who built his own library to house unpublished manuscripts.

Amazon sold its first book on April 3, 1995

Before selling everything on the internet, Amazon started as an online bookstore. The company's first customer was a man named John Wainright, who purchased "Fluid Concepts And Creative Analogies: Computer Models Of The Fundamental Mechanisms Of Thought" by Douglas Hofstadter. There's a building named after Wainwright on Amazon's Seattle campus.

'The Million Dollar Homepage' is a snapshot of a dead internet

In 2005, 21-year-old Alex Tew set out to make $1M by selling $1 pixels on his website, effectively creating a standalone internet billboard. The gambit worked, and because the advertisements were one-time payments, the site looks the same as it did in 2005, despite many of the advertised sites going defunct since.

Wikipedia articles are read more than 16 billion times every month

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.

Mosaic is credited for making the World Wide Web accessible to everyday people—not just scientists—for the first time

Mosaic was a web browser that allowed people to more easily access webpages on the World Wide Web. But unlike previous browsers, Mosaic was a graphical browser, which means it displayed images alongside text. This helped turn the web from a place for scientists into a cultural location that captured people's attention.

See a ranking of the most popular websites on the World Wide Web from 1995 to 2023

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.

AI scraping for LLM training data has significantly strained Wikipedia's infrastructure

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.

Distinguishing between Web 1.0, 2.0, and 3, all made possible by the internet

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.

Listen to the history of the first banner ad on the internet, which went live on Oct. 27, 1994, on HotWired.com and pioneered the modern concept of digital advertising.

Andrew Carnegie donated $56M to build 2,509 public libraries worldwide

Carnegie, who left school at 12 and credited borrowed books for his self-education, began funding libraries in 1881. Of the 2,509 libraries built, 1,681 were in the United States. He required each community to maintain the library as a condition of his gift.

Wikipedia's sister sites include directories of travel guides, species, and media

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.

The Ocean Observatories Initiative aims to provide freely accessible, real-time ocean data for up to 30 years to help scientists identify and analyze short- and long-term ocean processes.

A Grateful Dead online bulletin board system inspired the early internet and counted some of tech's biggest names, like Apple's Steve Wozniak, as users.

The history of the commercialization of the internet, from ARPANET to NSFNET and beyond

NSFNET was launched in 1986 by the National Science Foundation as the first network available to all researchers, connecting them to a system of supercomputer facilities. Despite growing from 2,000 computers in 1985 to 2 million by 1993, the rapid expansion of commercial internet services led to NSFNET's decommissioning by 1995.

View a collection of images and videos of coral reefs from around the world.

See inside the Boston Public Library, the first city-run free public library in the US

Founded in 1848, the McKim building opened in 1895 during a period of cultural optimism and social reform. Its Beaux-Arts architecture features marble staircases, murals by John Singer Sargent, and a Renaissance-inspired courtyard.

The Black Friday Archive collects Black Friday ads from the past 25 years

The archive features advertisements from notable retailers such as Bath & Body Works, Gap, and The Home Depot, among others. These ads span from the years 2000 to 2024, in addition to some from early holiday sales at Macy’s in 1963.

The history of the Linux Foundation, a technology consortium supporting open-source projects

The nonprofit, founded in 2000 by IBM, HP, Intel, and others as the Open Source Development Labs, was established to build the infrastructure needed to scale with the growing development of Linux. Upon merging with the Free Standards Group in 2007, it rebranded as the Linux Foundation and, as of 2024, provides a "neutral home for code and collaboration" to almost 1,000 projects.

The history of the National Science Foundation Network, a precursor of the internet

Although ARPANET connected various national laboratories and supercomputing facilities by the 1970s to facilitate scientific collaboration, the system was slow and required highly trained operators. The launch of NSFNET in 1986 provided a more flexible and powerful network that went on to connect over 170 academic and research communities and link to its European counterpart, EASInet.