American cities are getting more diverse, but neighbors of different races don't necessarily socialize with each other. A sociologist in North Carolina discovered one surprising reason why.
Google, Amazon and other powerful groups are renaming American cities and neighborhoods. That may make the area more appealing to newcomers – but, in many cases, residents aren't happy.
The secret of creating attractive, liveable places sounds deceptively simple: connect people to places, people to transport and people to people.
Social media apps are becoming as important as water, food and batteries when communities face natural disasters. One key function is helping people connect with neighbors and support each other.