I'm responding to both questions too.
I think we shouldn't worry that the government data is not necessarily what is returned in search engines and so forth. I think what we should do is understand to what extent government data has been taken up by researchers and by industry and made into higher quality data.
David alluded to the fact that most researchers in Canada use data.gov data to do their research, and I can attest to that: my graduate students use data.gov data to do their research. But we republish it as richer data, using what we have done because we have gone in and found data that is interesting to us. In terms of that information flow, we have to both understand what data has been taken up by the community and use that understanding to motivate what additional data we provide through the open data portal.
So we use the expertise of the crowd to come back and say that actually we can improve the data we're putting out, to better spur economic growth.