A method and system for generating and displaying a customized activity stream are provided. The method includes receiving a query from a client node; receiving at least one user-related parameter and at least one client node-related parameters; receiving unstructured data collected from a plurality of data sources; generating a plurality of contextual activity streams respective of the received unstructured data and the received query; generating a customized singular activity stream respective of the at least one user-related parameter and the at least one client node-related parameter, wherein the customized singular activity stream include a plurality of data items from one or more of the plurality of contextual activity streams; and causing a display of the customized singular activity stream over the client node.