35 Dissemination of advertising for others in the field of land surveying via a multi-user global computer information network; providing electronic commerce hosting of sales by others of goods related to land surveying via a multi-user global computer information network; and providing of direct referrals to electronic commerce sites of others at which goods related to land surveying are sold via a multi-user global computer information network; designing and hosting of web sites of others on a multi-user global computer information network