This is a nice resource from The Guardian that highlights some of the ways developers are making government data accessible to citizens.
The projects include housing price analysis, roadway usage, government spending, and aggregation of community information.
The site wheredoesmymoneygo.org is especially interesting: slide the bar to your yearly income, and see just how much of your salary is spent on education, health services, defense, and other categories.
Lots of applications to play around with, and plenty of food for thought!
Click here to see more in Statistics.