| 摘要 |
Methods, systems, and apparatus, including computer programs encoded on a computer-readable storage medium, for providing a method for re-publishing content that is provided by a content publisher to a user. A method includes providing an advertisement for display to a user in a slot, the advertisement including a first annotation providing information for or about re-publishing the advertisement; receiving a request to re-publish the advertisement to one or more individuals or groups associated with the user in a social context; and providing the advertisement as part of an activity stream for a social application, including presenting the advertisement in the activity stream for the user.
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