Aboujaoude E. (2010), Problematic Internet Use: An Overview. World Psychiatry, 9, 2, 85–90.

Bagwell C.L., Bender S.E., Andreassi C.L., Kinoshita T.L., Montarello S.A., Muller J.G. (2005), Friendship Quality and Perceived Relationship Changes Predict Psychosocial Adjustment in Early Adulthood. Journal of Social and Personal Relationships, 22, 235–254.

Barani K. (2009), Rola więzi online w życiu społecznym człowieka. W: B. Szmigielska (red.), Psychologiczne konteksty Internetu, 103–118. Kraków: WAM.

Bargh J.A., McKenna K.Y.A. (2004), The Internet and Social Life. Annual Review of Psychology, 55, 573–590.

Batorski D. (2004), Ku społeczeństwu informacyjnemu. W: J. Czapiński, T. Panek (red.), Diagnoza Społeczna 2003: Warunki i jakość życia Polaków, 195–235. Warszawa: Wyższa Szkoła Finansów i Zarządzania.

Batorski D. (2005), Internet a usieciowienie relacji społecznych. Kultura Współczesna, 1, 43, 41–62.

Bedyńska S., Cypryańska M. (2012), Statystyczny drogowskaz 1. Praktyczne wprowadzenie do wnioskowania statystycznego. Warszawa: Wydawnictwo Akademickie Sedno SWPS.

Bessiere K., Kiesler S., Kraut R., Boneva B. (2008), Effects of Internet Use and Social Resources on Changes in Depression. Information, Communication, and Society, 11, 47–70.

Berndt T.J. (2002), Friendship Quality and Social Development. Current Directions in Psychological Science, 11, 7–10.

Bee H., Boyd D. (2008), Psychologia rozwoju człowieka, tłum. J. Gilewicz, A. Wojciechowski. Poznań: Wydawnictwo Zysk i S-ka.

Brzeziński J. (2000), Badania eksperymentalne w psychologii i pedagogice. Warszawa: Wydawnictwo Naukowe „Scholar”.

Buhrmester D. (1990), Intimacy of Friendship, Interpersonal Competence and Adjustment during Preadolescence and Adolescence. Child Development, 61, 1101–1111.

Bukowski W.M., Hoza B., Boivin M. (1994), Measuring Friendship Quality during Pre-and Early Adolescence: The Development and Psychometric Properties of the Friendship Qualities Scale. Journal of Social and Personal Relationships, 11, 471–484.

Bukowski W.M., Motzoi C., Meyer F. (2009), Friendship as Process, Function and Outcome. W: K.H. Rubin, W.M. Bukowski, B. Laursen (eds.), Handbook of Peer Interaction, Relationships and Groups, 217–228. New York: Guilford Press.

Carbery J., Buhrmester D. (1998), Friendship and Need Fulfillment during Three Phases of Young Adulthood. Journal of Social and Personal Relationships, 15, 393–409.

Casale S., Fioravanti G., Rugai L. (2016), Grandiose and Vulnerable Narcissists: Who Is at Higher Risk for Social Networking Addiction? Cyberpsychology, Behavior, and Social Networking, 19, 8, 510–515. DOI:10.1089/cyber.2016.0189.

Castells M. (2007), Społeczeństwo sieci, tłum. M. Maroda i in. Warszawa: Wydawnictwo Naukowe PWN.

Daddis Ch. (2008), Similarity between Early and Middle Adolescent Close Friends’ Beliefs about Personal Jurisdiction. Social Developement, 17, 4, 1019–1038.

Dunn J. (2008), Przyjaźnie dzieci, tłum. Am Białecka-Pikul. Kraków: Wydawnictwo Uniwersytetu Jagiellońskiego.

Ellison N.B., Steinfield C., Lampe C. (2007), The Benefits of Facebook ‘Friends’: Exploring the Relationship between College Students’ Use of Online Social Networks and Social Capital. Journal of Computer-mediated Communication, 12, 1143–1168.

Erikson H.E. (2004), Tożsamość a cykl życia, tłum. M. Żywicki. Poznań: Wydawnictwo Zysk i S-ka.

Field A. (2009), Discovering Statistic Using SPSS. London: Sage Publications Ltd.

Furman W. (1996), The Measurement of Friendship Perceptions: Conceptual and Methodological Issues.
W: W.M. Bukowski, A.F. Newcomb, W.W. Hartup (eds.), The Company They Keep: Friendship in Childhoodand Adolescence, 41– 65, Cambridge: Cambridge University Press.

Furman W. (2001), Working Models of Friendships. Journal of Social & Personal Relationships, 18, 5, 583–602. DOI: 10.1177/0265407501185002.

Gauze C., Bukowski W.M., Aquan-Assee J., Sippola L.K. (1996), Interaction between Family Environment and Friendship and Associations with Self-Perceived Well-Being during Early Adolescence. Child Development, 67, 5, 2201–2216.

Greenfield P.M. (2009), Linking social change and developmental change: Shifting pathways of human development. Developmental Psychology, 45, 401–418. DOI:10.1037/a0014726.

Hartup W.W. (1993), Adolescents and their friends. W: B. Laursen (ed.), Close Friendships in Adolescence, 3–22. San Francisco, CA: Jossey-Bass.

Heilbron N., Prinstein M.J. (2008), Peer Influence and Adolescent Nonsuicidal Self-Injury: A Theoretical Review of Mechanisms and Moderators. Applied and Preventive Psychology, 12, 169–177.

Hinde R.A. (1996), Describing Relationships. W: A.E. Auhagen, M. von Salisch (eds.), The Diversity of Human Relationships, 7–35. Cambridge: Cambridge University Press.

Ibrahim Y. (2009), Social Networking Sites (SNS) and the “Narcissisticturn”. The Politics of Self-Exposure. W: S. Rummler, K.B. Ng (eds.), Collaborative Technologies and Applications for Interactive Information Design: Emerging Trends in User Experiences, 82–95. Hershey, PA: Idea Group.

Jaccard J., Blanton H., Dodge T. (2005), Peer Influences on Risk Behavior: An Analysis of the Effect of a Close Friend. Developmental Psychology, 43, 1, s. 135–147.

Kraut R., Patterson M., Lundmark V., Kiesler S., Mukhopadhyay T., Scherlis W. (1998), Internet Paradox: A Social Technology That Reduces Social Involvement and Psychological Well-Being? American Psychologist, 53, 1017–1031.

Krejtz K., Zając J.M. (2007), Internet jako przedmiot i obszar badań psychologii społecznej. Psychologia Społeczna, 2, 3–4, 191–200.

Lozano E.B., Hojjat M., Sims-Knight J. (2016), Does Ego-Resilience Impact Friendship Outcomes? Journal of Individual Differences, 37, 2, 128–134.

Manago A.M., Graham M., Greenfield P.M., Salimkhan G. (2008), Self-Presentation and Gender on MySpace. Journal of Applied Developmental Psychology, 29, 446–458.

Manago A.M., Taylor T., Greenfield P.M. (2012), Me and My 400 Friends: The Anatomy of College Students’ Facebook Networks, Their Communication Patterns, and Well-Being. Developmental Psychology, 48, 2, 369–380.

Mendelson M.J., Aboud F. (1999), Measuring Friendship Quality in Late Adolescents and Young Adults: McGill Friendship Questionnaires. Canadian Journal of Behavioural Science, 31, 130–132.

Mikami A.Y., Szwedo D.E., Allen J.P., Evans M.A., Hare A.L. (2010), Adolescent Peer Relationships and Behavior Problems Predict Young Adults’ Communication on Social Networking Websites. Developmental Psychology, 46, 46–56.

Parks R.M., Floyd K. (1996), Making Friends in Cyberspace. Journal of Computer-Mediated Communication, 1, 4, 0-0. DOI: 10.1111/j.1083-6101.1996.tb00176.x.

Pempek T.A., Yevdokiya A.Y., Calvert S.L. (2009), College Students’ Social Networking Experiences on Facebook. Journal of Applied Developmental Psychology, 30, 227–238.

Prinstein M.J., Wang S.S. (2005), False Consensus and Adolescent Peer Contagion: Examining Discrepancies between Perceptions and Actual Reported Levels of Friends’ Deviant and Health Risk Behaviors. Journal of Abnormal Child Psychology, 33, 3, 293–306.

Pulakos J. (2001), Young Adult Relationships: Siblings and Friends. Journal of Psychology, 123, 237–244.

Rabaglietti E., Ciaviano S. (2008), Quality of Friendship Relationship and Development Tasks in Adolescence. Cognition, Brain, Behavior, 12, 2, 183–203.

Rheingold H. (1993), The Virtual Community: Homesteading on the Electronic Frontier. Boston: Addison-Wesley.

Rubin K.H., Bukowski W., Parker J.G. (1998), Peer Interactions, Relationships, and Groups. W: W. Damon, N. Eisenberg (eds.), Handbook of Child Psychology, vol. 3: Social, Emotional, and Personality Development, 619–700. New York: Wiley.

Sampasa-Kanyinga H., Lewis R.F. (2015), Frequent Use of Social Networking Sites Is Associated with Poor Psychological Functioning among Children and Adolescents. Cyberpsychology, Behavior, and Social Networking, 18, 7, 380–385. DOI:10.1089/cyber.2015.0055.

Senejko A., Chmielewska-Łuczak D., Łoś Z. (2015), Internet Usage Styles and Attitudes toward Globalization. Polish Journal of Applied Psychology, 13, 1, 9–32.

Sheer V.C. (2011), Teenagers’ Use of MSN Features, Discussion Topics, and Online Friendship Development: The Impact of Media Richness and Communication Control. Communication Quarterly, 59, 1, 82–103.

Subrahmanyam K., Reich S.M., Waechter N., Espinoza G. (2008), Online and Offline Social Networks: Use of Social Networking Sites by Emerging Adults. Journal of Applied Developmental Psychology, 29, 420–433.

Szmigielska B. (red.) (2008), Całe życie w sieci. Kraków: Wydawnictwo Uniwersytetu Jagiellońskiego.

Szmigielska B. (red.) (2009), Psychologiczne konteksty internetu. Kraków: WAM.

Szwedo D.E., Mikami A.Y., Allen J.P. (2012), Social Networking Site Use Predicts Changes in Young Adults’Psychological Adjustment. Journal of Research on Adolescence, 22(3), 453– 466. DOI: 10.1111/j.1532-7795.2012.00788.x.

Tanner J.L., Arnett J.J. (2011), Presenting „Emerging Adulthood”: What Makes it Developmentally Distinctive? W: J.J. Arnett, M. Kloep, L.B. Hendry, J.L. Tanner (eds.), Debating Emerging Adulthood. Stage or Process?, 13–30. New York: Oxford University Press.

Urberg K.A., Luo Q., Pilgrim C., Degirmencioglu S.M. (2003), A Two-stage Model of Peer Influence in Adolescent Substance Use: Individual and Relationship – Specific Differences in Susceptibility to Influence. Addictive Behaviors, 28, 1243–1256.

Valkenburg P.M., Peter J. (2007), Preadolescents’ and Adolescents’ Online Communication and Their Closeness to Friends. Developmental Psychology, 43, 2, 267–277.

Valkenburg P.M., Peter J. (2009), Social Consequences of the Internet for Adolescents a Decade of Research. Current Directions in Psychological Science, 18, 1, 1–5.

Van Dijk J. (2010), Społeczne aspekty nowych mediów, tłum. J. Konieczny. Warszawa: Wydawnictwo Naukowe PWN.

Wang H., Wellman B. (2010), Social Connectivity in America: Changes Inadult Friendship Network Size from 2002 to 2007. American Behavioral Scientist, 53, 8, 1148–1169.

Webster A.A., Carter M. (2013), A Descriptive Examination of the Types of Relationships Formed between Children with Developmental Disability and Their Closest Peers in Inclusive School Settings. Journal of Intellectual & Developmental Disability, 38, 1, 1–11.

Wojciszke B. (1998), Psychologia miłości. Namiętność, intymność, zaangażowanie. Gdańsk: Gdańskie Wydawnictwo Psychologiczne.

Yu Rueger S., Malecki Ch., Demaray M.K. (2008), Gender Differences in the Relationship between Perceived Social Support and Student Adjustment during Early Adolescence. School Psychology Quarterly, 23, 4, 496–514. DOI: 10.1037/1045-3830.23.4.496.

Żurko M. (2011), Friendship during Adolescence: The Necessity for Qualitative Research of Close Relationships. Polish Journal of Applied Psychology, 9, 21–38.