inklewriter is a free tool designed to allow anyone to write and publish interactive stories. It's perfect for writers who want to try out interactivity, but also for teachers and students looking to mix computer skills and creative writing.
This real-time 3D simulation illustrates how topographic maps are created and used to depict changes in elevation. A topographic map is characterized by large-scale detail and quantitative representation of relief using contour lines. Rendered in real-time 3D, it is easy to understand how topographic maps are created since the simulation shows the same virtual environment in both a 3D mesh and 2D map format.
This is a visualization engine that shows relationships between items in the Amazon Marketplace. May be an interesting method for finding books that my interest children, for example.