US Geological Survey
U.s. Geological Survey: Prospecting for Gold in the United States
This informative site delves into the difficulty of prospecting for gold. A detailed description of placer deposits and lode gold is included in this site.
Web Elements
Web Elements Periodic Table: Gold
This page gives useful numerical and quantitative information about gold, chemical symbol Au. Includes videos of certain reactions, electronic configuration, and information about the isolation of gold metal.