I've just recently stumbled across datacollective.org, which says:
Public data is impossible to use.
We're going to fix it.
In ten seconds, you can find out who was the guest star on "30 Rock" last week.
How long does it take you to find historical charts and data for:
* income inequality
* government tax and spending
* global temperature trends
And do you trust the results once you find them?
Our ultimate goal: nudge public discourse in the direction of the facts.
Sounds very interesting!
Update: they have a blog.