Exchange services, namely, bartering of goods for others in the field of scrap metal; displaying and dissemination of advertising for others via the Internet in the field of scrap metal; providing a web site which features advertisements for the goods and services of others on a global computer network in the field of scrap metal; providing space at a web site for the advertisement of the goods and services of others in the field of scrap metal; providing an on-line computer database featurin...