Alongside established heritage institutions, family historians are central figures in the ecosystem of digital heritage, both as contributors to and users of digitized historical sources. With that in mind, this research aims for a wide examination of family historians' engagement with the broader selection of available digital platforms, providing knowledge about how and why they choose to use one platform over another. This knowledge is important for the future development of sustainable digital platforms in the heritage sector. With a large variety of digitized source providers, many with free access platforms, Denmark and Danish family historians make an excellent case for this study. Through both a questionnaire and focus group interviews, using a grounded theory approach, this study has developed a model of engagement with digital platforms, referred to as a buffet model. This model illustrates how family historians pick and choose from a selection of digital platforms throughout their search and management of information as well as their community interaction. Moreover, through the lens of the Serious Leisure Perspective we find that family history is often a life-long leisure activity and family historians’ usage of digital platforms support this finding.