This paper discusses different dimensions of social support which can be examined in the context of family care of the elderly. It calls for a greater measure of theoretical and empirical precision in relating specific types and sources of actual and perceived support to the particular demands and burdens faced by family caregivers at different stages in the course of caregiving. In addition, it spotlights three critical topics for future research: (1) analysis of the ways in which social support affects and is affected by chronic stressors; (2) examination of the determinants of actual and perceived support; and (3) the design and evaluation of interventions aimed to mobilize or augment the support provided to family caregivers.