Abstract: Technology is disclosed for controlling the processing and presentation of group data on computing devices to provide improved computing applications, electronic communications, and user computing experiences. Data indicating a group of people may be programmatically determined or inferred, such as from the user activity of a particular user. Group data characterizing the group of people may be generated and contextualized or personalized for the user based on a user context or intent. Aspects of the contextualized group data may be provided to the user in response to an interaction with an indication of the group or group member. The group data may be provided as a set of group information items, and further may be formatted or assembled for presentation based on the user context, and/or may be consumed by a computing application or service to provide an improved user computing experience.