There are two extremes with these types of social media management tools, says 21-year-old Chae.

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There are two types of people in the room: grant makers and social investors.

FORBES: Benevolent Schizophrenia - A Tale of Donors and Investors

On taking office, Lula offered himself as a bridge between two worlds, between the Davos crowd of business types and the World Social Forum of social and environmental activists.

ECONOMIST: Brazil