Culture Crossing is a unique resource for information about different countries. It provides some basic demographics, but it also shares details about communication style, dress, gestures, etc. It’s unlike any other source of information about countries that’s on the web. I’ll certainly be having my students use it now when they develop reports about countries.
It’s probably accessible to high Intermediate and Advanced English Language Learners.
I’ve placed the link on my website under Country and U.S. States Information.