Methods, systems, and apparatus, including computer programs for defining a first group of contacts, the first group of contacts having been specified by a first user of a social networking service and including contacts of the first user within the social networking service, each contact in the first group of contacts being associated with a first sub-group of contacts within the first group of contacts, the first group of contacts being associated with a distribution scheme for digital content provided by the first user within the social networking service, and associating, based on first input provided by the first user, one or more contacts of the first sub-group of contacts with a second sub-group of contacts within the first group of contacts, the second sub-group of contacts including contacts for which at least some digital content distributed to the first user is filtered from display to the first user.