Skuuudle - Discover, match and monitor your eCommerce competitors.
Artsy - A global platform for discovering and collecting art.
Price2Spy - Price2Spy is a price monitoring, pricing analytics, and repricing tool, meant to help eCommerce professionals keep an eye on their competitors or retailers.
ArtMajeur - +1 Million original artworks, Free Shipping Worldwide, Low prices guaranteed, 14 days return: buy all the art you love on Artmajeur!
Prisync - Prisync is a competitor price tracking and monitoring software for all sizes of e-commerce companies worldwide.
WikiArt - The Encyclopedia of Fine Art