Let's take a look at the range of cartographic animations/visualizations on the Web starting with the earliest styles.
Early animations and visualizations that have influenced the discipline:
http://www.ncgia.ucsb.edu/projects/gig/v2/About/abApps.htm Urban Change (scroll down to that section on the page)
http://www.ciesin.org/datasets/cdc-nci/cdc-nci.html AIDS data animations
http://geography.uoregon.edu/envchange/clim_animations/ Global Climate Animations
Time-series animations (limited or no interaction):
http://maps.unomaha.edu/AnimatedFlightAtlas/FlightTrafficAnimation.html Animated Atlas of Air Traffic
http://www.cdc.gov/obesity/data/trends.html Obesity Maps (the animations are gone but I'm leaving the link as the data is interesting)
http://www.nasa.gov/centers/goddard/news/topstory/2003/0619lightning_prt.htm Lightning strikes globally
http://www.mapsofwar.com/ Maps of War site -- esp. the Imperial History map
Interactive/Exploratory (to varying degrees):
http://valley.lib.virginia.edu/VoS/cwmaps1.html Battle Maps
http://nationalmap.gov/small_scale/100topos/index.html What remains of the old USGS National Atlas
http://www.lakeshorepreserve.wisc.edu/ Explore the Interactive Map
http://map.uoregon.edu/ U of Oregon campus map
http://stats.oecd.org/OECDregionalstatistics/ Regional Statistics
Real-time Data:
http://www.sailwx.info/ Sailing vessels (sometimes slow to load)
http://earthquake.usgs.gov/earthquakes/map/ USGS Earthquake Map
http://www.fly.faa.gov/flyfaa/usmap.jsp FAA flight delays
Fly though maps:
http://www.pbs.org/harriman/maps/w_fly_maps.html Western Alaskan fly through visualizations
3D Models:
http://svs.gsfc.nasa.gov/ NASA Visualization Center
http://www.google.com/gadgets/directory?synd=earth&cat=featured&previ... Google Earth gallery
Misc.
http://www-969.ibm.com/software/analytics/manyeyes/#/visualizations (compendium of many different visualization styles)
http://www-969.ibm.com/software/analytics/manyeyes/#/visualizations (compendium of many different visualization styles)
http://www.ubasics.com/dighole/ If you dig straight down....?