You are looking at documentation for an older release. Not what you want? See the current release documentation.
The section provides you with the information related to sharing your documents via the following topics:
Sharing directly in the Documents application
Instructions on how to share your documents in your spaces using the Share feature of the Documents application.
Explanations on the automatic creation of a new activity on the Activity Stream when you finish uploading or sharing a file and information related to the update of the activity when you do some changes on the document.