A report on Web 2.0

A tag cloud (a typical Web 2.0 phenomenon in itself) presenting Web 2.0 themes
Edit box interface through which anyone could edit a Wikipedia article.
A list of ways that people can volunteer to improve Mass Effect Wiki, an example of content generated by users working collaboratively.

Web 2.0 (also known as participative (or participatory) web and social web) refers to websites that emphasize user-generated content, ease of use, participatory culture and interoperability (i.e., compatibility with other products, systems, and devices) for end users.

- Web 2.0
A tag cloud (a typical Web 2.0 phenomenon in itself) presenting Web 2.0 themes

40 related topics with Alpha

Overall

Social media app icons on a smartphone

Social media

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Social media are interactive technologies that facilitate the creation and sharing of information, ideas, interests, and other forms of expression through virtual communities and networks.

Social media are interactive technologies that facilitate the creation and sharing of information, ideas, interests, and other forms of expression through virtual communities and networks.

Social media app icons on a smartphone
SixDegrees, launched in 1997, is often regarded as the first social media site.

1) Social media are interactive Web 2.0 Internet-based applications.

The historic World Wide Web logo, designed by Robert Cailliau.

World Wide Web

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Information system enabling documents and other web resources to be accessed over the Internet.

Information system enabling documents and other web resources to be accessed over the Internet.

The historic World Wide Web logo, designed by Robert Cailliau.
A web page displayed in a web browser
A global map of the Web Index for countries in 2014
This NeXT Computer was used by Sir Tim Berners-Lee at CERN and became the world's first Web server.
The World Wide Web functions as an application layer protocol that is run "on top of" (figuratively) the Internet, helping to make it more functional. The advent of the Mosaic web browser helped to make the web much more usable, to include the display of images and moving images (GIFs).
Graphic representation of a minute fraction of the WWW, demonstrating hyperlinks
A screenshot of a web page on Wikimedia Commons
Dynamic web page: example of server-side scripting (PHP and MySQL)
The usap.gov website
The inside and front of a Dell PowerEdge web server, a computer designed for rack mounting
Multiple web servers may be used for a high traffic website; here, Dell servers are installed together to be used for the Wikimedia Foundation.
The results of a search for the term "lunar eclipse" in a web-based image search engine

In the meantime, developers began exploiting an IE feature called XMLHttpRequest to make Ajax applications and launched the Web 2.0 revolution.

An example of user-generated content in the virtual world Second Life

User-generated content

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Any form of content, such as images, videos, text, and audio, that has been posted by users on online platforms such as social media, discussion forums and wikis.

Any form of content, such as images, videos, text, and audio, that has been posted by users on online platforms such as social media, discussion forums and wikis.

An example of user-generated content in the virtual world Second Life

The BBC adopted a user-generated content platform for its websites in 2005, and TIME Magazine named "You" as the Person of the Year in 2006, referring to the rise in the production of UGC on Web 2.0 platforms.

Banner in Bangkok, observed on June 30, 2014, during the 2014 Thai coup d'état, informing the Thai public that 'like' or 'share' activity on social media could land them in prison

Social networking service

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Online platform which people use to build social networks or social relationships with other people who share similar personal or career content, interests, activities, backgrounds or real-life connections.

Online platform which people use to build social networks or social relationships with other people who share similar personal or career content, interests, activities, backgrounds or real-life connections.

Banner in Bangkok, observed on June 30, 2014, during the 2014 Thai coup d'état, informing the Thai public that 'like' or 'share' activity on social media could land them in prison

1) social networking services are interactive Web 2.0 Internet-based applications,

Mashup (web application hybrid)

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Web page or web application that uses content from more than one source to create a single new service displayed in a single graphical interface.

Web page or web application that uses content from more than one source to create a single new service displayed in a single graphical interface.

Mashups can be considered to have an active role in the evolution of social software and Web 2.0.

O'Reilly in 2017

Tim O'Reilly

2 links

Founder of O'Reilly Media (formerly O'Reilly & Associates).

Founder of O'Reilly Media (formerly O'Reilly & Associates).

O'Reilly in 2017

He popularised the terms open source and Web 2.0.

Web 2.0 Summit

2 links

Annual event, held in San Francisco, California from 2004 to 2011, that featured discussions about the World Wide Web.

Annual event, held in San Francisco, California from 2004 to 2011, that featured discussions about the World Wide Web.

The event was started by Tim O'Reilly, who is also widely credited with popularizing the term "Web 2.0".

Screenshot of homepage on 14 November 2021

YouTube

3 links

American online video sharing and social media platform headquartered in San Bruno, California.

American online video sharing and social media platform headquartered in San Bruno, California.

Screenshot of homepage on 14 November 2021
Screenshot of homepage on 14 November 2021
From left to right: Chad Hurley, Steve Chen, and Jawed Karim, the founders of YouTube
The YouTube logo was used from its launch until 2007, it returned in 2008 and got removed again in 2010. Another version of this logo without their "Broadcast Yourself" slogan was used until 2011.
YouTube's headquarters in San Bruno, California
YouTube logo from 2015 until 2017
Logo of YouTube Go
Jordan Hoffner at the 68th Annual Peabody Awards accepting for YouTube
Leading YouTube content creators met at the White House with U.S. President Obama to discuss how government could better connect with the "YouTube generation."
Forbes has reported the total annual earnings of the top ten YouTuber accounts, and the income of the single highest-earning account.

In 2006, Time praised Web 2.0 for enabling "community and collaboration on a scale never seen before", and added that YouTube "harnesses the stupidity of crowds as well as its wisdom. Some of the comments on YouTube make you weep for the future of humanity just for the spelling alone, never mind the obscenity and the naked hatred".

Early example of a "diary" style blog consisting of text and images transmitted wirelessly in real time from a wearable computer with head-up display, February 22, 1995

Blog

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Discussion or informational website published on the World Wide Web consisting of discrete, often informal diary-style text entries (posts).

Discussion or informational website published on the World Wide Web consisting of discrete, often informal diary-style text entries (posts).

Early example of a "diary" style blog consisting of text and images transmitted wirelessly in real time from a wearable computer with head-up display, February 22, 1995
On December 6, 2002, Josh Marshall's talkingpointsmemo.com blog called attention to U.S. Senator Lott's comments regarding Senator Thurmond. Senator Lott was eventually to resign his Senate leadership position over the matter.
A screenshot from the BlogActive website.
An artist's depiction of the interconnections between blogs and blog authors in the "blogosphere" in 2007.

In the 2010s, the majority are interactive Web 2.0 websites, allowing visitors to leave online comments, and it is this interactivity that distinguishes them from other static websites.

Wikipedia originally developed from another encyclopedia project called Nupedia.

Wikipedia

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Multilingual free online encyclopedia written and maintained by a community of volunteers through open collaboration and a wiki-based editing system.

Multilingual free online encyclopedia written and maintained by a community of volunteers through open collaboration and a wiki-based editing system.

Wikipedia originally developed from another encyclopedia project called Nupedia.
Wikipedia's desktop homepage
The Wikipedia home page on December 20, 2001
Cartogram showing number of articles in each European language One square represents 10,000 articles. Languages with fewer than 10,000 articles are represented by one square. Languages are grouped by language family and each language family is presented by a separate color.
Screenshot of English Wikipedia's article on Earth, 30 March 2021
Differences between versions of an article are highlighted
Wikipedia's editing interface
American journalist John Seigenthaler (1927–2014), subject of the Seigenthaler incident.
Most popular edition of Wikipedia by country in January 2021.
Most viewed editions of Wikipedia over time.
Most edited editions of Wikipedia over time.
A graph for pageviews of Turkish Wikipedia shows a large drop of roughly 80% immediately after the block of Wikipedia in Turkey was imposed in 2017.
Estimation of contributions shares from different regions in the world to different Wikipedia editions
Number of editors on the English Wikipedia over time.
Pie chart of Wikipedia content by subject
Katherine Maher became the third executive director of Wikimedia in 2016, succeeding Lila Tretikov, who had taken over from Sue Gardner in 2014.
Overview of system architecture
The mobile version of the English Wikipedia's main page, from August 3, 2019
Wikipedia Monument in Słubice, Poland (2014, by Mihran Hakobyan)
Jimmy Wales accepts the 2008 Quadriga A Mission of Enlightenment award on behalf of Wikipedia
Wikipedia team visiting the Parliament of Asturias
Wikipedians meeting after the 2015 Asturias awards ceremony
A group of Wikimedians of the Wikimedia DC chapter at the 2013 DC Wikimedia annual meeting standing in front of the Encyclopædia Britannica (back left) at the US National Archives

Nicholas Carr wrote a 2005 essay, "The amorality of Web 2.0", that criticized websites with user-generated content, like Wikipedia, for possibly leading to professional (and, in his view, superior) content producers' going out of business, because "free trumps quality all the time".