Think of how Wikipedia works, how Amazon harnesses user annotation on its site, the way photo-sharing sites like Flickr are bleeding out into other applications. We're entering an era in which software learns from its users and all of the users are connected.
Tim O'ReillyWhen you have to prove the value of your ideas by persuading other people to pay for them, it clears out an awful lot of woolly thinking.
Tim O'Reilly