This site, operated by the American Association for Artificial Intelligence (AAAI), is a great starting point for people who want to learn more about the rapidly growing world of artificial intelligence (AI). AI Topics acts as a central hub for an enormous collection of material that exists on the Web. The links given on the site offer a wide range of information, including basic definitions of AI, discussions about related philosophical issues, journal articles, and current research. The news section is particularly useful, as it is updated frequently with new developments. Most of AI Topics are geared toward high school students, undergraduate students, people with little knowledge of the subject, and people interested in pursuing a career in AI.