iCivics Games - Sign up is required. Play games, earn points, and build projects. Election games, white house, U.S. citizenship, jury, government interactive games.
Economics: Have some fun with economics by checking out this link.
Econmic Adventure: Here is another econ site that will lead you through some amazing adventures.
http://www.storyofstuff.com/ All the stuff we buy comes from somewhere. But where? Take a closer look at economy and government and how the world works.
US Mint: How is money made? Money is used all the time to purchse goods and services, but where does our US money come from? Check it all out here at the US Mint.