10. The method of claim 1 further comprising: determining that two or more of the plurality of the contacts correspond to one person; wherein aggregating vitality events from inside multiple social networks for particular ones of the plurality of contacts includes aggregating the vitality events from inside the first network and inside the one or more other networks for the one person, thereby aggregating the vitality events for the one person across the multiple social networks.
10. The method of claim 1 further comprising: determining that two or more of the plurality of the contacts correspond to one person; wherein aggregating vitality events from inside multiple social networks for particular ones of the plurality of contacts includes aggregating the vitality events from inside the first network and inside the one or more other networks for the one person, thereby aggregating the vitality events for the one person across the multiple social networks. 32. The method of claim 10 , wherein determining that two or more of the plurality of the contacts correspond to one person comprises: ascertaining that a first contact in the first subset of the contacts and a second contact in the first subset of the contacts correspond to one person.