web 2.0 (en su tinta)

Es decir, en su propio idioma y con fuente del creador de este concepto :)

From Wikipedia, the free encyclopedia
The term “Web 2.0″ describes the changing trends in the use of World Wide Web technology and web design that aim to enhance creativity, communications, secure information sharing, collaboration and functionality of the web.

Web 2.0 concepts have led to the development and evolution of web-culture communities and hosted services, such as social-networking sites, video sharing sites, wikis, blogs, and folksonomies.

The term first became notable after the O’Reilly Media Web 2.0 conference in 2004. Although the term suggests a new version of the World Wide Web, it does not refer to an update to any technical specifications, but rather to changes in the ways software developers and end-users utilize the Web.

According to Tim O’Reilly:
Tim O'reilly
“Web 2.0 is the business revolution in the computer industry caused by the move to the Internet as a platform, and an attempt to understand the rules for success on that new platform.”

O’Reilly has said that the “2.0″ refers to the historical context of web businesses “coming back” after the 2001 collapse of the dot-com bubble, in addition to the distinguishing characteristics of the projects that survived the bust or thrived thereafter.

Web 1.0 Web 2.0
DoubleClick —> Google AdSense
Ofoto —> Flickr
Akamai —> BitTorrent
mp3.com —> Napster
Britannica Online —> Wikipedia
personal websites —> blogging
evite —> upcoming.org and EVDB
domain name speculation —> search engine optimization
page views —> cost per click
screen scraping —> web services
publishing —> participation
content management systems —> wikis
directories (taxonomy) —> tagging (”folksonomy”)
stickiness —> syndication

Differences taken from oreillynet.com