Auction management services provided to others over an on-line web site accessed through a global computer network; Marketing the goods and services of others by means of push notification technology; On-line advertising and marketing services; On-line auction services; On-line auctioneering services via the Internet; On-line promotion of computer networks and websites; Online retail grocery store services; Online retail store services in the field of downloadable mobile applications; Operating on-line marketplaces for sellers and buyers of goods and/or services; Promoting the goods and services of others by distributing coupons; Promoting the goods and services of others by means of a loyalty rewards card scheme; Promoting the goods and services of others by providing a website featuring coupons, rebates, price-comparison information, product reviews, links to the retail websites of others, and discount information; Providing a website for connecting sellers with buyers; Provision of an on-line marketplace for buyers and sellers of goods and services; Provision of an online marketplace for buyers and sellers of goods and services