Advertising, including promotion relating to the sale of articles and services for third parties by the transmission of advertising material and the dissemination of advertising messages on computer networks; Electronic commerce services, namely, providing information about products via telecommunication networks for advertising and sales purposes; Mediation of agreements regarding the sale and purchase of goods; Promoting sports competitions and/or events of others; Promoting the parties and special events of others; Providing a web site at which users can offer goods for sale and buy goods offered by others; Providing a web site that enables users to post items for sale through on-line classified advertisements; Providing marketing and promotion of special events; Providing on-line registration services for posting event tickets; Publicity and sales promotion relating to goods and services, offered and ordered by telecommunication or the electronic way; Publicity and sales promotion services