Economics Interactive Tools - A large library of interactive tools including videos and gamelike activities
EduWeb - Play adventure style games that put you in the heart of an adventure.
iCivics - Emerse yourself in government by taking part in deciding court cases, acting as President, and sitting on the Supreme Court.
Language Arts for Grades 9-10 - Create CD covers, personaize playlists, write a book, or tune in to podcasts to learn about new books coming out in your interest area. There are a variety of activities on this site by Read, Write, and Think.
Language Arts for Grades 11-12- Blog about courage, create your own comic strip, or make your own podcast. There are a variety of activities on this site by Read, Write, and Think.
Science Tools - Search by grade and field through hundreds of tools to help with science concepts. There are simulations of energy pendulums, interactive periodic tables, videos describing how petroleum was formed, and interactive explorations, just to name a few.