Promoting the goods and services of others by providing hypertext links to the web sites of others; Providing a searchable online advertising guide featuring the goods and services of other on-line vendors on the internet; 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 a web site which features advertisements for the goods and services of others on a global computer network; Providing an on-line searchable database featuring classified ad listings and employment opportunities; Providing an online directory information service featuring information regarding, a wide variety of topics of general interest to the public