nexus vs social networking

nexus

noun
  • A connected group; a network, a web. 

  • A centre or focus of something. 

  • A person who had contracted a nexum or obligation of such a kind that, if they failed to pay, their creditor could compel them to work as a servant until the debt was paid; an indentured servant. 

  • The relationship between a vendor and a jurisdiction for the purpose of taxation, established for example by the vendor operating a physical store in that jurisdiction. 

  • A form or state of connection. 

  • In the work of the Danish linguist Otto Jespersen (1860–1943): a group of words expressing two concepts in one unit (such as a clause or sentence). 

social networking

noun
  • The use of social contacts to network. 

  • Interaction with other people via a social network 

  • The interaction between a group of people who share a common interest. 

  • The use of Internet communities to network and communicate using shared interests, related skills, or geographical location between consumers and businesses. 

How often have the words nexus and social networking occurred in a corpus of books? (source: Google Ngram Viewer )