6. The method of claim 5 , wherein one of the criteria specifies a threshold percentage of users in an identified group identifying a common employer and selecting identified groups satisfying at least the threshold number of criteria as candidate groups comprises: selecting identified groups having less than the threshold percentage of users identifying the common employer.
5. The method of claim 1 , wherein determining the plurality of candidate groups for the requesting user from the one or more groups based at least in part on the distance between the location associated with the requesting user and locations associated with each of the one or more groups comprises: identifying a geographic region including the location associated with the requesting user, the geographic region including locations within a specified geographic area; and identifying groups associated with locations included in the identified geographic region; and selecting identified groups satisfying at least a threshold number of criteria as candidate groups.