Christopher Alexander, an architect, worked with a group of people to develop a set of patterns (e.g. be near a body of water) which hang together capturing what makes buildings/towns work well as living spaces. They called this set of patterns a pattern language, and since then people have attempted to develop pattern languages for other arenas of life.
A Pattern Language, The Timeless Way of Building, and the later Nature of Order, all by Christopher Alexander.
The original wiki was created by Ward Cunningham as a space for programmers to develop a pattern language. So we thought a wiki (and in particular, Wagn) might be a good tool for gathering patterns about good meetings / conversations that matter / group process.
On patterns and pattern languages in general:
Fearless Change by Manns and Rising (Don Benson)