Spetsnaz had always been a much more informal organization than the regular Soviet army.

Leaders emerge from within the structure of the informal organization.

Several more people joined the informal organization over the next three years.

Before this year, it was an unofficial and informal organization.

The informal organization evolves, and the complex social dynamics of its members.

Managers are less inclined to check up on workers when they know the informal organization is cooperating with them.

This need is met by the informal organization and its emergent, or unofficial, leaders.

The informal organization is well recognized by everybody except those above it.

It should not be left to informal organizations to deal with economic coordination.

A childhood secret club is an informal organization created by children.