The main purpose of this research is to investigate the relationships between adolescents' Internet addiction, their perceived social support and the activities carried out with the mother, father and family. The study designed with the survey model involved 166 adolescents who applied to Merkez Efendi Public Hospital Moris Sinasi Children's Clinic, Child Development Polyclinic between February 2012 and June 2012 for problems specific to the period of adolescence. The age range of the participants was between 12 and 18 with the average age of 15.5. The findings of the study revealed a medium level of negative relationship (r = -.37) between perceived social support and Internet addiction. The adolescents spending time with their mothers had a higher level of perceived social support and a lower level of Internet addiction. Also, t-test was applied to see whether the adolescents' perceived social support and Internet addiction differed with respect to the activities they carried out with the mother, father and family. It was found out that a number of activities (watching TV, eating meals, chatting, shopping and spending time outside) the adolescents carried out with their mother increased their level of perceived social support although the levels of Internet addiction did not differ with respect to the types of activities carried out only with the mother, only with the father and with the family. (C) 2013 Elsevier Ltd. All rights reserved.