In a recent ‘research in practice’ article in the Journal of Information Science, Mandalios introduced the RADAR tool, which she designed to assist students evaluate online information. She pointed out that the tool, although supported by preliminary qualitative research conducted at her own institution, required further empirical investigation. This brief communication aims to contribute empirical evidence which supports the efficacy of RADAR as a tool for evaluating online information resources by discussing student feedback on the application of the tool in an introductory session to a taught postgraduate business class. The context in which the RADAR tool was deployed is discussed, data on student reactions to it is reported and implications for future research are discussed.