#227: mafia, portraits, tube, economy
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Map of Mafia victims since 1861
http://www.lastampa.it/2015/11/09/medialab/webdocauto/quando-la-mafia-uccide-gli-innocenti-yvmEILRKvXC7VVdDZrXmdN/pagina.html -
London tube map with the walking times between stations
http://transitmaps.tumblr.com/post/133010621335/walking-tube-map-2015 -
The most economic productive urban areas of the USA
http://howmuch.net/articles/where-the-money-is-by-metro-area -
Postgis query optimisation changing the ST_Simplify tolerance with the zoom level
http://blog.hogan.io/postgis-generalization/
Raf