Activity Village UK – tons of printables, projects, activites, and information, for all grade levels, all free.
Time for Kids: Around the World – Videos, timelines, basic facts, images, flags, languages and more for countries on every continent. Also has “A Day in the Life” for each country, with a kid from the country giving an hour-by-hour schedule of his or her typical day.
KidsKonnect.com – a safe internet gateway for kids. Lots of information and activities for all grade levels. Includes a section on countries around the world, with a fact sheet and links on each. Good place to start for each country.
National Geographic Kids – Places – videos and other goodies from NatGeo.
A to Z Kid’s Stuff – All kinds of educational and fun stuff for kids, searchable by grade level or topic. Coloring pages, art recipes, articles, reviews and printables. The “All Around the World” section has pages for many countries with history, culture, and basic fact links.
Google Translate – very useful for figuring out how to pronounce words and phrases in most world languages.