Lines and planes
Animations
Interactive animation: A line in space determined by two points. [Paul Blanchard]
Applets
Lines in the plane and space: Shows the basic vector parametrization of lines in the plane and space. [MIT]
The cross product: Shows the cross product of vectors in 3-space. [Syracuse University]
The cross product: Shows the cross product of vectors in 3-space. [MIT]
The cross product: Shows the cross product of vectors in 3-space. [ETSU]
The cross product calculator: Calculates cross products. [ETSU]
Planes in 3-D space: Plots the plane determined by any three points. [MIT]
Tutorials
Tutorial on the cross product: East Tennessee State University
Tutorial on planes: East Tennessee State University