Encyclopedia.com

Encyclopedia.com is an online encyclopedia and dictionary aggregating content from more than 200 individual encyclopedias and reference books, covering topics across earth and environment, history, literature and the arts, medicine, philosophy and religion, science and technology, and the social sciences and law, used by universities and institutions for research and homework help. Sample entries include income tax, autism, Pure Land Buddhism, the Boston Tea Party, Hernán Cortés and the Pyrenees, and the site also covers topics such as environmentalism, surrogate motherhood, education and martial arts, with a newsletter sign-up for updates.