On-line auction services for digital contents items and goods; auction services for digital contents items and goods; on-line auction services for digital art works and other art works; auction services for digital art works and other art works; provision of an online marketplace for buyers and sellers of digital contents items and goods; retail store services for artworks; retail store services for downloadable digital arts, namely, downloadable images, videos and pictures; online retail store services for downloadable music, images, videos and pictures; retail store services provided via computer networks for downloadable electronic publications; retail store services for downloadable text data; retail store services for downloadable game programs; retail store services for trading cards

Art brokerage for digital art works and other art works; appraisal of digital art works and other art works, and providing information relating thereto