Choropleth maps, the ones where regions are filled with colors based on data,…
mapping
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Choosing color palettes for choropleth maps
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Adjusting map data with Mapshaper
Map making is a finicky challenge where oftentimes your map data — points,…
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Link
d3.geo.statePlanes →
Nice projections for US states in D3.
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GeoCommons 2.0, now with more mapping features
GeoCommons, an open repository of data and maps, launched version 2.0 this week,…