FMDAC - Federation of Metal Detector and Archaeological Clubs
Treasure Quest XLT - Treasure Hunting Community
Passport in Time - Passport in Time (PIT) is a volunteer archaeology and historic preservation program of the USDA Forest Service (FS).
USGS Geographic Names Information System (GNIS) database contains information on nearly two million place names and features in the United States. You can also list places by type: post offices, schools, etc. There are also links to online maps.
History research resource ehistory
Jimmy Sierra's - Metal Detecting Accessories and England Tour
Searching for Loot - Metal detectors & Accessories