Linking data items describing a person into a single, unified contact entry without merging the data items. The data items include, for example, contact data, social network data, and other data describing the person. The contact entry is a single representation of the person that, in some embodiments, combines a plurality of personas of the person without merging the underlying data items. Metadata representing one or more contact entries is capable of being shared across a plurality of devices and applications such that a user is presented with a consistent contact list on different devices and from within different applications. In some embodiments, the user annotates one or more of the contact entries with notes or other data that is stored with the metadata.