Social Entrepreneurship is the work of a social entrepreneur. A social entrepreneur is:

someone who recognizes a social problem and uses entrepreneurial principles to organize, create and manage a venture to make social change.

Whereas a business entrepreneur typically measures performance in profit and return,

a social entrepreneur assesses success in terms of the impact s/he has on society as well as in profit and return.

While social entrepreneurs often work through nonprofits and citizen groups, many now are working in the private and governmental sectors and making important impacts on society.

The main aim of social entrepreneurship as well as social enterprise is to further social and environmental goals for a good cause.

Although social entrepreneurs often are associated with nonprofits, this need not be incompatible with making a profit. Social enterprises are for "more-than-profit", using blended value business models that combine a revenue-generating business with a social-value-generating structure or component.

A social entrepreneur in the twenty-first century will redefine entrepreneurship as we know it, due to their progressive business models.

-Wikipedia