Aboud, F.E. (2003). The Formation of In-Group Favoritism and Out-Group Predjudice in Young Children: Are They Distinctive Attitudes? Developmental Psychology, 39(1), 48-60.

Postmes, T., Spears, R., Lee, A. T., & Novak, R. J. (2005).  Individaulity and Social Influence in Groups : Inductive and Deductive Routes to Group Identity. Journal of Personality and Social Psychology, 89(5), 747-763.

              This study centers on the formation of Social Identity in small groups.  Two studies were done in two separate groups.  The deductive identity group, where individuals behavior's regarding group norms are deduced from the group.  The Inductive identity group is categorized by the stimulation of individual group differences.  The main goal of this experiment was to observe the effect of depersonalization among these two groups.
            I think that this study is interesting because it attempts to explain individuality and social influences of in-groups and how depersonalization can either increase or decrease a groups social influence and how it relates to group polarization. This is an important study because it has given us insight into different groups and organizations.  It also shows us how they make or influence their decisions and opinions among other group members.  It explores the effects of social identity when one magnifies individual differences within the group.  And separate processes and hetergenity in a group can help form a group identity.