A user may make a digital item available to other users of a computer network, such as an instant messaging system, a chat environment, or a subscription-based computer network. Examples of digital items that may be shared with other users include digital representations of graphic images, photographs, audio segments, songs, video segments, movies, and text (such as lists of favorites (e.g., a list of favorite books, a list of favorite movies, and a list of favorite places to visit)). On-line presence information is provided to indicate the on-line presence of users with whom a digital item has been shared, may be shared or is being shared. For instance, an indication of the on-line or offline status of a user with whom an item has been shared or is being shared may be presented.