01278cz a2200313n 4500 sh87002172 DLC 20110330133409.0 001220i| anannbabn |a ana sh 87002172 DLC DLC DLC HM741 Sociology Social networks subdivision Social networks under classes of persons and ethnic groups Networking, Social Networks, Social Social networking Social support systems Support systems, Social g Interpersonal relations Cliques (Sociology) Microblogs Work cat.: Research on support for parents and infants in the postnatal period, 1987 (Social networks) LC database, Mar. 18, 1987. Soc. systems & family patterns (Social network) Hennepin (Networks) Web. 3; Penguin dict. soc.; Fairchild dict. soc.; BDNE2 Google search, Sept. 22, 2006 (social networks; social networking) Here are entered works on the system of personal relationships in which an individual is involved, including neighborhood, friendship, kinship, occupational and economic connections, etc.