To get a better understanding of grounding, I'm taking measurements, digging up resources (no pun intended) and learning as much as I can. This is an important topic for developing proper antenna and AC installations. It's especially important for my work at the Corbin facility, which houses geomagnetic instrumentation. I want to fully understand the implications of various grounding connections to ensure I don't introduce errors into the instruments.
Measuring Ground - A detailed explanation of the Fall of Potential method. From this web site: http://www.kilowattclassroom.com/ArchiveCatalog.htm#Instrument%20Application%20Notes
Measuring Ground - Theory - Another white paper
Need to add all the PDFs I built.
http://www.jensen-transformers.com/apps_wp.html - excellent set of articles covering audio grounding.