Sharing data within an instant messaging session is described. A user participating in an instant messaging session may request a data access key. The key, which provides access to data associated with the user, may then be transmitted via the instant messaging session to one or more other participants in the instant messaging session. The other instant messaging session participants can then use the key to access, via the instant messaging session, the data associated with the user. Users may be granted various levels of access to another user's data.