The document outlines 6 types of e-commerce: 1. Business to Business (B2B) where both buyer and seller are businesses 2. Business to Consumer (B2C) where businesses provide products/services to consumers 3. Consumer to Business (C2B) where consumers request specific services from businesses 4. Consumer to Consumer (C2C) where one consumer sells a product to another through a third party 5. Business to Administration (B2A) where businesses request services from government agencies 6. Consumer to Administration (C2A) where consumers request services from government agencies.