Google no longer seems to be using this as a signal. There's nothing to be gained by using this plugin. This plugin lets you tell Google News abo
When you select one of your posts as a standout story, the plugin puts a special link in the header of the story, which your readers won't see, but Google News will. If you re-blog or reference a great story someone else wrote, you can use the special standout link button on the Visual Editor bar to give them credit. The links in your post's header look like this:
<link rel='standout' href='http://www.nytimes.com/2011/10/30/business/luck-is-just-the-spark-for-business-giants.html' />
= When I press the Standout Story button in WordPress's Visual Editor, nothing happens? Why not?
The Standout Story button works just like the Link button. First, you must highlight the text you want to link to in the body of your post, then hit the Standout link button. Then you will be able to link to someone else's great story in the body of your post, and the plugin will add the special link into your post's header.
Google says it will use the standout story links as part of its determination of which stories to feature on its popular news page.
The tags are visible to any search spider so if it's a useful signal, expect other aggregation sites will use it as well.