Business management assistance and particularly carrying out tasks necessary for the smooth conduct of sales by auction; Business services, namely providing computer databases regarding the purchase and sale of a wide variety of products and services of others; Electronic commerce services, namely providing information products via telecommunication networks for advertising and sales purposes; Marketing services, namely providing informational web pages designed to generate sales traffic via hyperlinks to other web sites; 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 an on-line searchable database featuring used book being offered for sale and buyer/seller contact information