Hello IES Class! Here is a great website for your poster presentations:

http://education.yahoo.com/reference/factbook/

Click on countries and then you should be able to find all kinds of great information.

Another good website is the New Internationalist Magazine. Scroll down to the NI Country Profiles and look for your country.

http://www.newint.org/

There are millions of places on the web . . . this is just a start. Good luck!