Promoting the sale of audio, sound, and/or music-related services of others through the distribution of printed advertising material and by providing hypertext links to the web sites of others; retail and wholesale distributorships, on-line ordering and mail order services featuring related products and department store merchandise; on-line commercial information and directory agency; computerized database management; providing an on-line computer database featuring trade information in the field of audio, sound, music and related services; providing on-line directory information services also featuring hyperlinks to other web sites; promoting the goods and services of others by means of operating an on-line shopping mail with links to the retail web sites of others