Welcome to the commons. The term may be unfamiliar, but the idea has been around for centuries. The commons is a new use of an old word, meaning “what we share”—and it offers fresh hope for a saner, safer, more enjoyable future. The commons refers to a wealth of valuable assets that belong to everyone. These range from clean air to wildlife preserves; from the judicial system to the Internet. Some are bestowed to us by nature; others are the product of cooperative human creativity.