social networking noun3 •The interactions among a group of people who share a common interest (a social network); (sometimes specifically) The use of social contacts to network (pursue career advancement, sales, marketing, electioneering, etc). •(Internet) Interaction with other people via a social network (app or website), involving internet communities.Should you spend too much time purchasing and installing social networking software and only have 20 percent of your alumni registered, you are wasting your time and money. — 2008 •(Internet) Such activity to network and communicate using shared interests, related skills, or geographical location between consumers and businesses.