This document discusses marketing of services. It notes that the service sector contributes over half of GDP in developed economies like the US and India. It defines a service as an intangible act or performance offered by one party to another. Key characteristics of services include intangibility, lack of ownership, variability, and involvement of customers. The marketing mix for services, called the 7Ps, expands on the traditional 4Ps to include physical environment, process, and people. Loyalty programs aim to acquire and retain profitable customers over the long run. Franchising is discussed as a way to expand service delivery across multiple sites using local knowledge.