Ethnocentrism without Place

Appadurai mentions the misconception of the "global village" and how media create communities with "no sense of place". This newfound lack of place suggests the phasing out of ethnocentrism (without a place to which one can feel nationalistic), yet it simultaneously recreates a new kind of ethnocentrism with "placeless" communities. How does "rootlessness" impact our sense of nationalism and community? Does a physical place in fact give one a greater sense of belonging?