Links to good iron stuff.

The Oregon Iron Chronicles - history of ironworking in Oregon State : 

New York City Architectural Ironfounders and marks :

The Scottish Ironwork Foundation - for ironwork made or found in Scotland : 

The work of The Mesker Brothers Iron Works and George L. Mesker & Co.

The Italian Museum of Cast Iron

Font des Art - European focus based in Belgium

Vulcan - large cast iron sculpture celebrating ironworking in Alabama

Vulcan - large cast iron sculpture celebrating ironworking in Alabama

MAGMA - Museum of cast iron art in Follonica

Coalbrookdale Museum of Iron

Museum of Artistic Casting - Poland