Often slandered for its socially constructed content, Wikipedia offers a valuable starting point for some searches. References and External Links can often take users to reputable information, for instance.
Developed by publisher Dorling Kindersley this online encyclopedia is free to all. As with its books, the layout is clean, illustrations are clear photos and the text is spare but informative. The reader has the option to follow a line of questions. Many special features to educate and entertain.