A method may include storing user information associated with a first user, where the user information includes at least two of location information, presence information, address book information or calendar information. The method may also include storing access control information identifying criteria for allowing parties to access the user information and receiving, from a first party, a request for access to at least a first portion of the user information. The method may further include determining, based on the access control information, whether the first party is authorized to access the first portion of the user information and providing access to the first portion of the user information, when it is determined that the first party is authorized to access the first portion of the user information.