Enterprise 2.0 - The 4Cs by @niallcook
Niall uses four primary functions of social software to distinguish between different tools/applications, namely connection, collaboration, cooperation and communication. This distinction is straight-forward and intuitive, although some overlap between the functions exists. As you can see, there are two scales on which each function can be placed, i.e. formality and interaction. A company with an informal structure and a culture of rewarding individual effort would find itself in the lower left quadrant and may, thus, be encouraged to invest in social software facilitating communication between employees. Instant messaging, blogs or discussion forums may be appropriate tools to do so.