The Sad Tally: Suicides on the Golden Gate Bridge:
http://flowingdata.com/2009/07/28/suicides-by-location-on-the-golden-gate-bri...
Map of Parking Tickets in NYC: http://tinyurl.com/5e9b4s
Total Solar Eclipse Paths: http://www.flickr.com/photos/michaelpaukner/4429654194/sizes/o/
Web Comic: http://xkcd.com/503
World Population shown by latitude and longitude: http://urbandemographics.blogspot.com/2010/08/world-population-distribution-m...
What your global neighbors are buying: http://www.nytimes.com/interactive/2008/09/04/business/20080907-metrics-graph...
Arctic Ice Map: http://urbanomnibus.net/main/wp-content/uploads/2009/03/arcticmap.jpg
Stylized Typography city maps: http://store.axismaps.com/
Election redistricting (good use of graphics within lots of text): http://www.nytimes.com/interactive/2010/09/26/weekinreview/26marsh.html
A bit of map art: http://bldgblog.blogspot.com/2010/03/new-world-order.html
Collections of good graphics (many of which are geographic):