Enterprise social networking software architecture

An enterprise-based social networking application. Events for individuals may be collected from various enterprise-based information systems automatically using adaptors that are specially tailored for particular types of information systems. Such events may then be used to populate event feeds regarding individuals in that enterprise. A filtering model for formulating event feeds identifies events by individual, event type, and event time. The filter also identifies which individuals are in which group of a participant, and identifies which groups correspond to which event types. Incoming events may then be filtered into the event feeds depending on the group to which the individual belongs. A user interface for a participant to view and edit group membership is also provided.