This site allows you to create trading cards for any purpose. you could create cards filled with historical facts about a person (fictional or real). You could fill the card with information about a landmark or location. you could even use this site to create cards for a game. To sum it up, this website could be used to study or play a nice card game that you just created.
Problem Attic is a free service that allows you to quickly create practice tests and flashcards for social studies, language arts, mathematics, science, and many other subjects.
Free student resources from Discovery Education. Find homework help, games and interactives, and step-by-step webmath help to help students learn and have fun.