This site offers resources for teachers and parents, as well as games, activities, and contests for kids who like challenges.  I like the “Living Poetically” challenge, as well as the “Excellence in Reading Award”.  In the games section, there is a neat “Family Crossword” that is updated twice a week.  It includes clues for kids and for adults, so families can participate together.  The “Word Roundup” is a fun way to learn new trivia and vocabulary, and there are several math games as well.  According to Mensa’s website, Mensa for Kids just won the 2011 APEX Grand Award in the category of Electronic & Video Publications (Nonprofit/Small Office subcategory). With its treasure trove of lesson plans and entertaining activities, I can certainly see why!