Distributorship and catalog ordering services by means of a global computer network featuring science teaching products, laboratory furniture, laboratory instruments, laboratory appliances, laboratory chemicals and diagnostic products; promoting the sale of goods or services of others through on-line advertising, on-line display of products, promotions and customer giveaways, and e-mail marketing, namely, direct e-mails to customers or website visitors; providing information in the field of marketing of the goods and services of others by means of an interactive web site on a global computer networks; on-line retail services featuring science teaching products, laboratory furniture, laboratory instruments, laboratory appliances, laboratory chemicals and diagnostic products; providing information in the field of quotations issued to potential buyers of goods and services by means of global computer network