This document discusses consumer and business e-commerce. It describes how consumers can shop online through websites, using searchable catalogs and secure checkout. It also discusses how online stores differ from physical stores in terms of hours, customer assistance, and ability to handle products. The document then covers using online catalogs, payment methods, customer service policies, online banking, and online finance for consumers. For businesses, it describes business-to-business e-commerce, the use of intranets and extranets, and telecommuting. The document concludes with sections on improved online security measures, how to identify secure web pages, and encryption for safe data transmission.