What is stakeholder marketing?

Primary stakeholders:

Those most vital to the organization.

A group without whose continuing participation the company cannot survive as a going concern, e.g. customers, suppliers, employees.

Secondary stakeholders:

Those without whose continuing participation the company can still exist. e.g. the community.

Source: http://www.tutor2u.net/business/strategy/stakeholders-interests-and-power.html

ANSWER

Stakeholder Marketing is an approach that recognizes that the "market" is not just a narrowly defined customer target (or series of customer segments). Even the customers themselves make up the community within which the business exists.

It perceives that customers are interconnected with employees, vendors, government and community, the environment and more. More importantly, more companies are raising the ethical bar on their marketing and seeking to earn both the trust and loyalty of the market. Stakeholder marketing is an approach that does both.

It is a new concept in Marketing in this modern world.

Source: http://blog.hosfeld.com/strategy/stakeholder-marketingbuilding-trust-and-loyalty-in-a-cynical-market/