Digital Chart of the World From Penn State University Libraries. Creates maps of individual countries showing boundaries or other features. Map Viewer From the Xerox Palo Alto Research Center. Creates maps with various features, projections, and scales. Includes the world, but U.S. maps are more detailed.
Maps can include bathymetry, topography, national boundaries, rivers and channels, cities, etc.
Also available are plate tectonic features such as Ridges, Trenches, Faults, and Magnetic Lineations. Comments and suggestions are welcome.