For those interested in map information, National Geographic's Map Machine is an effective place to start. Map Machine's Atlas allows users to click on a world map or on continent or country menus to retrieve country maps, with concise information and flags. There are also selected area maps available, created from weather satellite data, as well as political and physical maps and a Macromedia Shockwave enhanced world map that allows users to view a world map interactively. The quality of the maps is the quality of the site.