The Chicago Tribune has a five-part series on making maps using PostGIS, TileMill, Mapnik and Google Maps.  Each part reviews one aspect of pulling together a complete online map with Google Maps as the base.

The series covers:

  1. Less Interactivity
  2. Prepare your data with ogr2ogr and PostGIS
  3. Make it pretty with TileMill
  4. Render with Mapnik
  5. Overlay on a Google Map and deploy

Via ManoMarks

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