City network

City networks are the connections between cities.

These networks can be of different nature and of different importance. In modern conceptions of cities, these networks play an important role in understanding the nature of cities. City networks can be physical connections to other places, such as railways, canals or scheduled flights. City networks also exist in immaterial form, such as trade, global finance, markets, migration, cultural links, shared social spaces or shared histories. There are also networks of religious nature, in particular through pilgrimage.

The city itself is then regarded as the node where different networks run together. Some of these networks are more powerful than others, and networks of global finance are currently (2009) dominant. Some urban thinkers have argued that cities can only be understood if the context of the city's connections is understood.

It has been argued that city networks are a key ingredient of what defines a city, along with the number of people (density) and the particular way of life in cities.

Social networks and social media

Types	City Personal Professional Sexual Value

Networks	Distributed social network (list) Enterprise social networking Mobile social network Personal knowledge networking

Services	List of social networking websites List of virtual communities with more than 1 million users List of virtual communities with more than 100 million active users

Concepts and theories	Assortative mixing Interpersonal bridge Organizational network analysis Small-world experiment Social aspects of television Social capital Social data revolution Social exchange theory Social identity theory Social network analysis Social web Structural endogamy

Models and processes	Aggregation Change detection Collaboration graph Collaborative consumption Giant Global Graph Lateral communication Social graph Social network analysis software Social networking potential Social television Structural cohesion

Economics	Collaborative finance Social commerce

Phenomena	Community recognition Complex contagion Consequential strangers Friend of a friend Friendship paradox Six degrees of separation Social invisibility Social network game Social occultation Tribe

Related topics	Researchers User profile Viral messages Virtual community

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