The regional trading systems of the islands around the eastern end of New Guinea were particularly elaborate. In the Massim, people traded pottery from the Amphlett Islands and canoe timber and greenstone blades from Muyua (Woodlark Island). Carved platters, canoe prow boards, and other specialized products were complemented by a flow of yams and pigs from areas with rich resources to smaller, ecologically less-favoured islands. Some islanders, such as those from Tubetube in the southern Massim, produced very little themselves and specialized instead as middlemen. Similar interdependencies and specializations occurred in the Vitiaz Strait, between New Guinea and New Britain. ...(100 of 5870 words)