SYMBOLS.com -- encyclopedia of Western signs and ideograms

Fun and informative site.
Can be used when you need an idea for a new tattoo or when you need to identify a symbol you spied.

SYMBOLS.com contains more than 2,500 Western signs, arranged into 54 groups according to their graphic characteristics. In 1,600 articles their histories, uses, and meanings are thoroughly discussed. The signs range from ideograms carved in mammoth teeth by Cro-Magnon men, to hobo signs and subway graffiti.