What is exactly web 2.0?

To quote a palmolive commercial... "you're soaking in it"

Web 2.0 is, at its core, about user-created content (and/or social networking).

Instead of the host of the website creating all of the content and providing it for users to consume, the host creates a structure into which users can create the content.

So... cnn.com ? web 1.0 cnn.com user comments ? web 2.0

The straight dope? web 1.0 Fluther? web 2.0

Previous fluthers:
http://www.fluther.com/disc/312/would-this-site-be-considered-web-20-or-web-30/
http://www.fluther.com/disc/1414/what-is-web-30/

@Perchik: you are pulling back references out left and right! (I'm impressed)

heh I've been here long enough to remember a lot of the old posts

Tim O'Reilly (publisher of the technical books that bear his name) is credited for coming up with the term. bpeoples is essentially correct. But, but you can read the definition straight from the horse's mouth here: http://www.oreillynet.com/pub/a/oreilly/tim/news/2005/09/30/what-is-web-20.html

http://www.youtube.com/watch?v=rDqGQ59jw_Y

This is a really cool vid about Web 2.0 - hope you like it!

NOTE this website below has very funny quotes but there is some swearing/sexist language so for those of the more gentile persuasion, you might not appreciate.

<dsully> please describe web 2.0 to me in 2 sentences or less.
<jwb> you make all the content. they keep all the revenue.

http://www.bash.org/?latest

The first rule of Web 2.0 is YOU DO NOT TALK ABOUT WEB 2.0!
John Furrier, December 19th, 2005 – PodTech Founder and CEO
http://www.podtech.net/home/

amazing site. is it just me or can i REALLY not scroll to the bottom?
i have tried everything.Popular links: web 2.0
http://www.dzone.com/links/tag/web%202.0.html

read this for the comments alone! funny note the COINCIDENTAL 1984

Traitors in our Midst – Posted December 19 | 84 comments
Russell Shaw, Dave Winer and Richard MacManus have each declared that Web 2.0 is dead and/or that it never existed.
http://www.crunchnotes.com/?p=88

HAS ANYONE EVER SEEN THIS VIDEO – I WOULD ABSOLUTELY LOVE TO GET IT
Finally – Web 2.0 explained!
http://www.nevillehobson.com/2007/11/18/finally-web-20-explained/
Just watch this. All you need is here.
[Update 20/11] As noted in the comments, the person at Nokia who uploaded the video has taken it down – if you try and play the video, you’ll see this text:
From Nokia. Nice connection (no pun) with their slogan, “Connecting People.”

Thinking about this Web 2.0 thing
http://paulmiller.typepad.com/thinking_about_the_future/2005/08/thinking_about_.html

LINKS BELOW FOUND VIA http://www.findingdulcinea.com/home.html

The Web 2.0 Workgroup is a network of premium blogs on the new generation of the Web. Combined, these sites reach a large readership of influential technology and media professionals. If you would like to subscribe to all of these blogs, download and import the OPML file into your favorite RSS reader
http://web20workgroup.com/

WOW THE WILDEST THING I HAVE SEEN…
Go2Web2.0 is a directory of Web 2.0 sites that allows you to search or browse through the content tags to find the sites you might be interested in. The site displays the results in a grid, each with a graphical button of their respective logos, which can make the operation and navigation of this unorthodox site rather slow at times. If you have a slower computer or Net connection, don’t even attempt to load this site
http://www.go2web20.net/