This issue of the Journal of Service Science is dedicated to the inferences of system thinking upon recent service research advances, and in particular upon service science and SD logic. The special issue is based upon the scientific proposals deriving from the “2009 Naples Forum on Service”, and specifically to its sessions dedicated to system thinking and its relation to service research (www.naplesforumonservice.it). The forum, held in the island of Capri, Italy, has addressed intriguing issues such as complexity, system thinking, human behavior, vitality, service systems, and in particular was based upon Service Science, Service Dominant logic and network theories. These topics represented the forum pillars since they constitute an attempt in proposing new marketing and management theories in line with the evolution of economic contexts, cultural and behavioral change of customers, globalization of systems and competition, information and communication technology with the Internet and web service, and other changes. ...