ChemGlobe: Silver: Electronic, thermal, and steric data along with an isotope table.
ChemicalElements.com: Silver: Basic information, atomic structure, and isotopes.
EnvironmentalChemistry.com: Silver: Atomic structure, chemical and physical properties, and table of nuclides.
It's Elemental: Silver: Basic physical and historical information.
LANL: Silver: Properties, uses, handling, and cost.
Lenntech: Silver: Physical data, chemical properties, health and environmental effects.
Radiochemistry of Silver: D. N. Sunderman (Battelle Memorial Institute, Columbus, Ohio). [PDF]
Silver: Data tables and historic information.
Visual Elements: Silver: Image, general and physical information, source, uses, key isotopes, and ionisation energies.
WebElements: Silver: Extensive information on history, uses, occurrence, compounds, and properties.
Wikipedia: Silver: Properties of the element, including its history, applications, and charateristics.