a collection of people who exist in the same place at the same time, but who don't interact or share a sense of identity

people who share similar characteristics but who are not connected in any way

any collection of at least two people who interact with some frequency and who share some sense of aligned identity

a group a person belongs to and feels is an integral part of his identity

a group that an individual is not a member of, and may even compete with

small, informal groups of people who are closest to us

groups to which an individual compares herself

larger and more impersonal groups that are task-focused and time limited

he extent to which an individual complies with group or societal norms

a two-member group

a three-member group

organizations that people do not voluntarily join, such as prison or a mental hospital

large, impersonal organizations

the increasing presence of the fast food business model in common social institutions

an organization in which participants live a controlled lifestyle and in which total resocialization occurs

Sets of informal and formal ties that link people together.