Below are listed some other links for plate tectonics. The first group of links is for school-age children. The second should appeal to those in more advanced research.
General Geology
Bryan Aivazian's Science Visualization Home Page
Images of hazards to people
http://pubs.usgs.gov/publications/text/tectonics.html
http://pubs.usgs.gov/gip/earthq3/when.html
Plate tectonic indices
http://www.ibg.uit.no/geologi/G-link/plate.html (Department of Geology at University of Tromsø)
http://www.uni-wuerzburg.de/mineralogie/links/teach/earthteach.html (KNOWLEDGE 1: Links for Mineralogists; Mineralogisches Institut Würzburg)
Other plate reconstruction sites
http://www.odsn.de/ - ODSN interactive reconstructions
http://plates.uchicago.edu/ - University of Chicago
http://www.scotese.com - Chris Scotese's website
Education Links for plate tectonics and associated topics.
Time-scale with fossils
Geology, Meteorology and Oceanography (training sessions for teaching plate tectonics)
"Integrated Earth Science for Teachers" on-line course http://www.telecampus.utsystem.edu/index.cfm/4,1358,82,97,html.
See where you live - http://www.globexplorer.com
http://observe.arc.nasa.gov/nasa/education/teach_guide/ (NASA's Observatorium Teacher's Guides)
http://pubs.usgs.gov/publications/text/dynamic.html ("This Dynamic Earth: The Story of Plate Tectonics" by Kious & Tilling)
http://volcano.und.nodak.edu/vwdocs/vwlessons/plate_tectonics/plate_activities.html (from Volcano World)
http://www.hartrao.ac.za/geodesy/Plate.html (from Hartebeesthoek Radio Astronomy Observatory)
http://www.ucmp.berkeley.edu/geology/tectonics.html (Museum of Paleontology, Univ. of California, Berkeley)
http://welcome.to/geologycentral (Geology Central - Virtual Geology Field Trips and Geology Links)
Advanced Studies: Plate tectonics links and other interesting geoscience links.
Dietmar Müller's homepage - with movies.
http://topex.ucsd.edu/marine_topo/mar_topo.html (seafloor and land topography data, Sandwell et al.)
http://topex.ucsd.edu/marine_grav/mar_grav.html (marine gravity data, Sandwell et al.)
http://gmt.soest.hawaii.edu/ (GMT: Generic Mapping Tools)
http://www.wcrl.ars.usda.gov/cec/java/lat-long.htm "Surface Distance Between Two Points of Latitude and Longitude"
http://www.fcc.gov/mb/audio/bickel/distance.html "Distance and Azimuths Between 2 Sets of Coordinates"
http://ofgs.ori.u-tokyo.ac.jp/~okino/platecalc_new.html - plate motion calculator
http://www.fiu.edu/orgs/caribgeol/
(Caribbean geology)
http://www.ig.utexas.edu/CaribPlate/CaribPlate.html (Origin of the Caribbean Plate)