Web 2.0

Web 2.0
Original by Markus Angermeier Vectorised and linked version by Luca Cremonini · CC BY-SA 2.5 · source
Name	Web 2.0
Introduced	early 2000s
Developers	Tim O'Reilly, O'Reilly Media, Dale Dougherty
Paradigm	user-generated content, participatory culture, service-oriented architecture
Related	AJAX, RSS, social networking, cloud computing

Contents

Web 2.0 Web 2.0 emerged in the early 2000s as a reaction to earlier World Wide Web practices, emphasizing participatory services, user-generated content, and interactive design. Proponents included Tim O'Reilly, Dale Dougherty, and firms such as O'Reilly Media, Google LLC, and Amazon.com, who promoted new business models and design patterns. Critics and scholars from institutions like Harvard University, Massachusetts Institute of Technology, and Stanford University debated its social and economic consequences alongside regulators such as the Federal Trade Commission and the European Commission.

Definition and Origins

The term was popularized in 2004 by Tim O'Reilly and discussions at events like the O'Reilly Media conferences and the Burning Man–adjacent tech circuit, while antecedents trace to projects at MIT Media Lab, Stanford University, and startups incubated in Silicon Valley. Early influential services included enterprises created by Yahoo! Inc., Microsoft Corporation, Google LLC, Facebook, Inc., and eBay Inc., which demonstrated shifts from static pages toward dynamic platforms. Intellectual lineage connects to research by groups at Xerox PARC, scholars at University of California, Berkeley, and initiatives like RSS development by contributors including Dave Winer and Netscape Communications Corporation alumni.

Key technical enablers encompassed asynchronous scripting exemplified by AJAX implementations from developers at Google LLC and Mozilla Foundation, syndication via RSS and Atom driven by contributors such as Blogger (service) founders, and the rise of APIs championed by firms like Amazon.com and Salesforce. Interface and design practices drew on user-experience work at IDEO, the Cooper (design firm), and research from Hasso Plattner Institute, while backend shifts adopted virtualization and distributed systems developed by teams at Google LLC, Amazon Web Services, and Facebook, Inc.. Identity, authentication, and federated login used standards pushed by OpenID Foundation and companies including Microsoft Corporation and Yahoo! Inc..

Major consumer platforms included social networks and services such as Facebook, Inc., Twitter, Inc., LinkedIn Corporation, YouTube, Wikipedia, Reddit, Pinterest, and Instagram (service), while e-commerce and marketplace innovations were led by eBay Inc., Amazon.com, and Etsy, Inc.. Collaboration and productivity saw adoption of applications from Google LLC (e.g., Google Docs), Microsoft Corporation (Microsoft Office online initiatives), and enterprise tools from Salesforce, Atlassian, and Slack Technologies. Media and publishing transformations involved outlets such as The New York Times, The Guardian, and platforms like WordPress and Blogger (service), while crowd-sourced knowledge projects included Wikimedia Foundation initiatives and scientific preprint servers inspired by groups at Cold Spring Harbor Laboratory and arXiv.

Web 2.0 reshaped markets through network effects observable in firms like Facebook, Inc., Google LLC, and Amazon.com, influenced labor patterns discussed in studies from Stanford University, University of California, Berkeley, and Oxford University economists, and altered advertising and media revenue models exemplified by The New York Times, News Corporation, and ViacomCBS. Political mobilization and civic communication used platforms linked to movements studied by researchers at Harvard Kennedy School, University of Oxford, and University of Pennsylvania, while philanthropic and development programs coordinated through organizations such as United Nations agencies, Bill & Melinda Gates Foundation, and International Rescue Committee explored digital engagement strategies.

Critiques targeted surveillance capitalism described by scholars at Harvard University and University College London, data breaches at companies including Facebook, Inc. and Yahoo! Inc., and regulatory scrutiny from the Federal Trade Commission, European Commission, and national agencies like the Information Commissioner's Office. Content moderation controversies involved legal and policy disputes featuring platforms such as Twitter, Inc., YouTube, and Reddit and prompted testimony before legislative bodies like the United States Congress and the European Parliament. Issues of labor, gig economy practices, and antitrust investigations implicated corporations including Uber Technologies, Inc., Airbnb, Inc., and Amazon.com and attracted attention from institutions such as United States Department of Justice and competition authorities in United Kingdom and Germany.

The transition toward decentralized architectures and semantic ambitions drew on research at MIT Media Lab, Cornell University, and projects like Ethereum and Bitcoin from developers including Satoshi Nakamoto–linked communities, while standards bodies such as the World Wide Web Consortium and initiatives at IETF explored interoperability. Major technology firms—Google LLC, Microsoft Corporation, Amazon.com, and Facebook, Inc.—adapted Web 2.0 paradigms toward cloud-native services and emergent concepts discussed at conferences hosted by O'Reilly Media, SIGCOMM, and Web Summit. Academic analysis from Columbia University, Princeton University, and Yale University continues to assess how participatory platforms evolved into systems combining decentralization, tokenization, and machine-assisted knowledge representation.

Category:Internet history