2013.03.25 - All three mirror links found in Genn's Mining Op Spreadsheet are either broken or no longer have access to the spreadsheet.
2013.03.25 - The link Halada's Complete Miner's Guide returns a '403 - Forbidden: Access is denied.' error
2013.03.25 - The link Determine which ore to mine for most profit goes to a wiki page flagged for deletion.
2015.08.05 - This page should be merged with Mining Op as it covers much of the same material.