This document discusses emerging modes of e-business. It defines various types of e-business including B2B (business to business), B2C (business to consumer), C2C (consumer to consumer), and intra-business commerce. B2B refers to businesses conducting business with other businesses. B2C involves businesses selling products or services to consumers. C2C has no middle businesses and allows consumers to become sellers. Intra-business commerce occurs within a single firm using an intranet. The document also outlines the benefits and limitations of e-business, such as increased accessibility but also security and technical challenges. It describes online transactions and payment options including cash-on-delivery, checks, credit/debit cards,