The three major types of peer relationships are:
Information peer relationships. Information peer relationships are a type of peer relationship that involves sharing information and data concerning the organization amongst colleagues. This type of relationship is associated with a low level of self-disclosure and trust. Peers in this relationship are only comfortable with sharing information that involves work or the common subject that has brought them together, and nothing on a personal level.
Collegial peer relationships. These are peer relationships that combine both friendship and acquaintance but are practiced on a moderate level. There is little or no intimate communication, but one can sometimes engage in out-of-work discussions.
Special peer relationships. Special peer relationships have high levels of trust, intimacy, and the involved parties are willing to self-disclose and support each other. Peers are not afraid of talking about any topic, they exhibit high levels of openness, and intimacy is not an issue. They are equivalent to "best friend" relationships.