This Diwali site from KidsGen has a comprehensive set of resources - really great for use in schools. It claims that you can: “Learn about the roots of the festival of Deepavali, the traditions, the pujas at this time, or just send Diwali greeting cards to your friends and families. You can also bring this Indian festival mood right in your desktop theme, by downloading one of the Ganesha or any other wallpaper for the occasion. You can also know about the five days of Deepawali celebrations, Dhanteras, or Bhai duj, and get some exquisite rangoli designs to decorate your homes with the best of rangoli patterns. Also, don’t forget to check out the mouth-watering vegetarian Diwali recipes.