Distributed Computing architecture where each node is independent and self-sufficient, and there is no single point of contention across the system... People typically contrast SN with systems that keep a large amount of centrally-stored state information, whether in a Data Base, an Application Server, or any other similar single point of contention.

Three popular web development technologies, PHP, Django, and Ruby On Rails, all emphasize an SN approach, in contrast to technologies like J2EE that manage a lot of central state.

Edited:    |       |    Search Twitter for discussion