Social Space 2011 (Issue Four): Enlightened Marketplace, Savvy Advocacy, New Social Models. The 17 articles in the 2011 Issue Four of Social Space, the Journal of the Lien Foundation, Singapore Management University explore many aspects and the ideas and ongoing activities of the non-profit social organisations of today. Interviews with three of Singapore's leading social innovations precede wide-ranging articles on: business, activities in the international "enlightened marketplace"; advocacy and human rights developments in Singapore and ASEAN; new social models in innovative plans and developments; and on activities of the Social Innovation Exchange of the European Commission, Change Fusion of Thailand and the Hope Institute of South Korea. The final article ruminates on death and dying well in today's world.