Describes the development and pilot use with 45 families of a procedure for assessing social support. The social network map takes into account both the structure and function of the client's personal social network using a circle mapping technique and a grid. Several aspects of support are evaluated: existing informal resources, potential resources, barriers to networking, and factors in formal service planning. The clinical utility of the map is discussed, along with guidelines for using social support information in case planning. (PsycINFO Database Record (c) 2012 APA, all rights reserved)