Parents need to know that this educational site includes a wide variety of topics and activities that kids will be into -- and probably have to know for a school report or test. Some things could definitely upset a kid (a timeline for the Holocaust has some pretty gruesome photos) but the site does a great job at warning you if there's anything to worry about. There are many ads on the pages, and book reviews contain an Amazon link to buy the book.
Educational value:Articles on geography, maps, economics, the alphabet, and lots more; some offer tutorials.
Violence:There is a "war" section, but all the information is educational. Some of the external links have mature content in their images (dead bodies during the Holocaust).