Answers are grounded in this paper and cite their sources.
Communities are networks of interpersonal ties that provide sociability, support, information, a sense of belonging, and social identity. Well into the 20th century, communities were equated with neighborhoods---bounded groups of people living near each other. This neighborhood-centered view of community made only partial sense because people have always had long-distance community ties either by traveling themselves or through connections with soldiers, artisans, peddlers, traders, marriage partners, shepherds, and the rich.
No takes yet. Share an insight, caveat, or question.
Barry Wellman (2005) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: