Help a Brainiac, What is in your opinion the best Web 2.0 service or website?

I've tried this before and got no answers or one answer. Let's try to get some more this time.

Help a Brainiac, What is in your opinion the best Web 2.0 service or website?
I'd most likely say the WWW still. Though many might not consider it as a service, it plunges us heads-on into the maze of evolutionary e-quotient so to speak.





Sites that are equally enticing are...





1. http://www.netvibes.com/


2. http://www.songbirdnest.com/


3. http://www.zimbra.com/products/product_e...
Reply:My favorite Web 2.0 sites are:





www.netvibes.com


www.flickr.com


www.techcrunch.com
Reply:I like:





http://newsvine.com/


http://digg.com/


http://slashdot.org/





And pretty much anything that's coming out of Google these days.





I think Web 2.0 is such a fad though, most of it has been available for years now.
Reply:I would have to go with Wikipedia. By opening up the encyclopedia to the world, you now get a lot of information about a wide variety of subjects you'd never find in the World Book. Sometimes the information is suspect, but usually it's a great place to start research. A good list of sites is below.

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