useful geomagnetic warnings

Plot your GPS tracklog in real time with this Google Maps hack

Heh…”Supervisor Besch was concerned the county was spending $500,000 to make certain tasks faster and more efficient, but not expecting [to] save any money by reducing employees.”

Handouts for Pennsylvania Society of Land Surveyors State Plane Coordinate System Workshop

web companion to the book– useful *.pdf figures from the text

“KML, or Keyhole Markup Language, is an XML grammar and file format for modeling and storing geographic features such as points, lines, images and polygons for display in the Google Earth Client.”