The United States of America have this government organization called the Central Intelligence Agency, commonly known as the CIA and they have an on-line publication called "The World Factbook". They allow The World Factbook to reside in the public domain so you are free to use and copy its contents at any time for any purpose without the need to obtain permission, they just ask that you "cite The World Factbook" where you use their information and "Don't use our CIA seal on your own work, please."
That said, there is a lot of interesting information there. If you like touring Google Earth (which, by the way, has just been updated so as to allow you to view star constellations) simply to check the planet out then this is an excellent reference full of tidbits about the places you are visiting.
The front page greets you with links to appendixes, guides, low-bandwidth versions, downloadable versions, flags of the world and a search feature. Everything any good government site should have. Near the top of the page is a drop-down list full of country names and world regions.
So, I check out Australia. The page opens up with a map of the country and the first thing I notice is that my home town is on it.
Below the map in point form is a very detailed analysis in point form about geography, population, government, economy, communications, transportation, military and international issues including a note at the bottom of the page stating that Tasmania is one of the world's major suppliers of licit opiate products.
It's an interesting read if nothing else. And there is similar depth of information of any country you care to click on. Wiki will give you different information. So if you are cruising around in Google Earth and you find something interesting, like the land-locked Andorra, and you want to know a bit more about it that the Wiki offers, if you want specifics, check out The World Factbook.