One of the biggest concerns people have when sharing context
information is that of privacy. Lederer et al. [9] found that people
make judgments about whom to share information with based
more on the identity of the recipient of the information than on the
situation within the information was sought. Davis et al. [2] also
found that people decide whom to share information with based
on their relationship to the person, such as spouse, friend, peer
etc. While each person made different decisions about which
information to share with whom, casual acquaintances
consistently received significantly less information than other
kinds of relationships [2] [10]. We therefore expect people to
share a significant amount of their context information with their
intimate social network within Friendlee. In addition, Friendlee
leverages the inferred closeness of the social ties to decide which
information should be displayed by default to each contact.