Hi:

Is ad-revenue supported web 2.0 service model still working ?

eg.
there are many news papers on the internet that are free,
because they make profits through advertising. However, that
model seems to be on its way out.

Google in recent times has reduced the number on the Google docs
participants.

My current understanding is that once the current Ad contracts
close out, it is going to be a while before the Ad shows up
again.

thanks
Saifi.