Social networks Online social networks 7 Social networking (online) 7 Social groups. Group dynamics 6 Twitter 6 Groups and organizations 5 Social media 4 Article 3 female 3 human 3 male 3 social network 3 Clustering 2 Electronic commerce 2 Female 2 Humans 2 Information technology. Information society. Digital divide 2 Male 2 Sentiment analysis 2 Social influence. Social pressure 2 Social network 2 Social psychology 2 Travel and state. Tourism 2 United States 2 controlled study 2 major clinical study 2 social behavior 2 Academic department 1 African Continental Ancestry Group 1 Age cohorts 1