Antique glass

Insulators Glass and Porcelain
An educational site about insulators. The sites have collection of glass insulator books.

Ms. Information
California based antique glass collecting site that features glass insulators books. The company specializes in out-of-print books about antiques and collectibles with about 2000 titles in stock and ready to ship.

Kate's Candy Glass
Dealer of vintage products based in the United States that offers glass insulator books and other antique glass collecting products. Your on-line source for memories of days gone by. They specifically specialize in items from the 1920s through the 1960s,