Web 2.0 is it doomed?

Is there a difference? Do companies really think differently than consumers?
No.
But do consumers want to have workflow, or approval for posted documents?
Maybe.
Can Web 2.0 provide this?
Maybe, maybe not.

Schools come to mind as a primary target of this problem.

My kids and others in the nation, require signed parental approvals for different events, from pictures to field trips to sports teams to donations.
Now having us email the school our approval is not a secure way to do this, mostly because our kids can sppof emails as easily as the next one.
Do we have a keyring from Verisign with crypto code to enter to validate us?
Do we get issued a digital ID?
Nope.
So how do we get around this problem?
Schools don't have the infrastructure or money to hire devlopers for this and maybe someone like Google or IBM or Microsoft wants to take a look at this.
How many of us intercepted letters from teachers or principals sent home about behavior, grades, truancy? Now how do you think your kids do it today?
Spam blockers, simple mail rule agents :-)
Maybe you should take a look at your mail client.
Companies want to encourage interaction(if you work for one who doesn't my condolences and hope you get out soon) but not without tracking, security and backup because at any time they can be sued or need to bring it all back up, something which is not always available in the Web 2.0 world.