Abstract: A system includes a content provider serving a first user webpage that displays an external posting link associated with a computer store and a second user webpage of a social networking service. The computer store contains posts each associated with a post select control. A computer server at the content provider is coupled to the computer store and for each of the posts is programmed to receive from a web browser of a computer user a signal indicating activation of the post select control of a selected one of the posts displayed by the first user webpage, automatically link the selected one of the posts to the external posting link, receive from the web browser of the computer user a signal indicating activation of the external posting link, and automatically issue the selected one of the posts to the second user webpage for posting thereon.