Mining Industry

• American Coal Council
• Canadian Institute of Mining, Metallurgy and Petroleum
• The Coal Association of Canada
• Energy Information Administration
• InfoMine
• Mineral Information Institute
• The Mining Association of Canada
• Mine Safety and Health Administration
• National Mining Association
• Rocky Mountain Coal Mining Institute
• The Society for Mining, Metallurgy, and Exploration Inc

Oil and Gas Industry

• Society of Petroleum Engineers
• American Association of Petroleum Geologists
• American Geophysical Union
• American Petroleum Institute
• Geological Society of America
• Independent Petroleum Association of Mountain States
• Organization Interstate Oil & Gas Compact Commission
• Rocky Mountain Association of Geologists
• Society of Core Analysts
• Society of Exploration Geophysicists
• Society of Independent Professional Earth Scientists
• Society of Petroleum Evaluation Engineers
• The Society of Professional Well Log Analysts
• Coalbed Natural Gas Alliance
• Petroleum Technology Transfer Council
• Canadian Society of Exploration Geophysicists
• Canadian Society of Petroleum Geologists
• Canadian Society for Unconventional Gas
• Canadian Well Log Society
• Petroleum Society Canadian Institute of Mining,
  Metallurgy and Petroleum
• Petroleum Technology Alliance Canada
• Society of Petroleum Engineers United Kingdom

Water Resources

• National Groundwater Association
• USGS -- Water Resources of the United States
• USGS National Geologic Map Catalog
• US Geological Survey's Water Use Home Page
• Drinking Water and Health Advisories
• International Erosion Control Association
• Water Structure and Science
• Water Technology Online
• The Hydrogeologist's Home Page