As CSCW creates and investigates technologies for social communication, it is important to understand the emotional benefits and costs of these systems. We propose the Affective Benefits and Costs of Communication Technologies (ABCCT) questionnaire to supplement traditional qualitative methods of understanding communication media. We discuss the pilots of this survey with 45 children and 110 adults measuring the inter-item reliability of this instrument. We present the results of interviews with 14 children and 14 adults, which help confirm that the ABCCT measures the same constructs that may emerge through interview investigations. Finally, we demonstrate that the ABCCT is sensitive enough to discriminate between different communication technologies and has shown promise in some of its early adoption. Though the ABCCT is not without limitations, it may provide a way to compare technologies in field deployments, draw findings across investigations, and quantify the impact of specific design decisions.