American Museum of Natural History
American Museum of Natural History: O Logy: Plates on the Move
Find an interrelated set of tools--maps, animations, diagrams, photographs, and text--to help you understand tectonic plates and how they move.
University of California
Tectonic Plates
Get an overview of all the tectonic plates that make up the earth's crust. The colorful contrasting and labeled plate boundaries make this an excellent resource.
Other
University of Delaware: Plate Tectonics
This site is a very simple overview of plate tectonics. It includes a map of all the major plates and a diagram of the layers of the earth.
Annenberg Foundation
Annenberg Learner: Dynamic Earth Interactives
Interactive tutorials on plate tectonics, plates and boundaries, and the Earth's structure convey the dynamism of geologic processes, such as earthquakes and volcanoes. Takes a multidimensional approach to coverage of basic geologic...