online advertising on a computer network; advertising; commercial administration of the licensing of the goods and services of others; providing business information via a web site; provision of an online marketplace for buyers and sellers of goods and services; marketing; sales promotion for others; business management of performing artists; updating and maintenance of data in computer databases; web site traffic optimization; business auditing; rental of sales stands; rental of vending machines; sponsorship search; store services for pharmaceutical, veterinary and sanitary preparations and medical supplies