Web 2.0 emerged after dot-com bubble burst in 2001. Term gained 9.5 million citations in Google. Web 2.0 Conference was born at O'Reilly Media
Web 2.0 emerged from Tim O'Reilly's 2004 Web conferences. Term initially referred to "web as platform". Later expanded to include democracy and user-generated content
WWW is an information system using URLs and hypertext links. Tim Berners-Lee invented web in 1989 at CERN. Internet is global network, WWW operates on its infrastructure
ARPANET was established on October 29, 1969 by four universities. Vint Cerf developed TCP/IP protocol in 1974 for computer communication. The Internet is not synonymous with the World Wide Web
Web 2.0 emerged in 1999 as a participatory web concept. Term was coined by Darcy DiNucci and popularized by Tim O'Reilly in 2004. Web 2.0 frameworks focus on website design without technical requirements
First Web 2.0 photo hosting site launched in 2006. Allows unlimited free storage of digital images and albums. As of February 2023, has over 75 million user-uploaded images. Monthly average attendance is about 13 million unique users