New technologies transform research specialties and potentiate new fields. Sociometers--wearable electronic sensors collecting quantitative, dynamic data about embodied social interactions at hyperfine scales--represent such a possibility for small group research. This article introduces this new method and its distinctive qualities and affordances. Next, we relate its potential for advancing understanding of three types of small group phenomena: (1) rhythmic entrainment, emotional energy, and solidarity; (2) nonverbal dominance and deference; and (3) groups as complex systems. We then present findings from two pilot studies of small group creativity in science and art collaborations. To do so, we combine sociometric, survey, and ethnographic data to consider how speech participation, body movement, and volume shape group creativity and to illustrate how sociometric data complements traditional qualitative and quantitative methods. We close by relating practical lessons learned to aid future researchers working to harness this powerful new research technology.