Interactive media theory where an infrastructure focusing on content creation, management, and dissemination is built for the user to generate that content in a community framework.
Urban Dictionary falls under the Web 2.0 theory because they built an infrastructure to create, manage, and disseminate the definition of slang terms generated by the user and ranked by the community.
by Jason D. Schwartz March 2, 2006
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A buzzword used by dullards to seem hip and "in" on "latest" technology, in hopes that no one will be perceptive enough to see that what's "Web 2.0" isn't new at all, but rather a catch-all term for websites that give people imagined self-importance by letting them comment on and share content with other equally moronic readers.
OMG this website is so Web 2.0! Check it out there's a button to post this to my facebook, myspace, and twitter! Now all my friends will see how hip I am and maybe someone will finally love me!
by Snakes on a Wii September 23, 2009
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Pretty much the current generation of the internet and this will probably last til about 2012. It is the internet where blogging, social networking, forums, wikis, video sharing, webcams, sharing, getting pwned, etc. takes place.

Web 1.0 was the primitive internet where you went to campbells soup.com and there it is. Web 2.0 is pretty much where you can read and post blogs about soup and share info about your favorite soup on your Facebook profile. There is a Web 3.0 coming into the future which will probably be the iPhone Web, in which the internet might be in different places than a computer.
Kraft.com is Web 1.0
MySpace.com is Web 2.0
by kizzle23 March 7, 2009
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Refers to the internet in terms of blogging, open source programming, RSS and XML programming among others. Web 2.0 is a general discription of web use which eschews heretofore traditional concepts of centralized, "hunt by favoritets" type search and response techniques in favor of aggregators and blogging interconnects and decentralized community systems.
"Bookmarks are so old school, geek. Aggregators and podcasting are more Web 2.0..."
by Phillip Carlisle Sellers June 5, 2005
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Used to describe something very cool or appealing. Recognized by the game, Grand Theft Auto IV.
Jenny, that top is sooo Web 2.0
by Chris O Here May 28, 2008
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Rounded edges added to webpages as well as a glossy/glass look to buttons and images.
Wow, look at that round website! They clearly embraced web 2.0!!
by uberamd July 21, 2008
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A term used to describe the victoriousness of machines over humankind.
"Thanks to Web 2.0, we don't need original human thought anymore! Plug me in, Morpheus!"
by gregjockca May 20, 2007
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