Arts, Artists, Artwork - International online artists' community based in Vancouver (prices in USD) with free international delivery

Art2Arts - UK based leading online gallery with free UK delivery and returns

Artfinder - London based leading online gallery with free returns

ArtMakers - North Devon based not-for-profit Community Interest company supporting local artists

Artmajeur - Paris based online gallery 

Saatchi Art - The world's leading online galllery based in Los Angeles