Enable link previews
Check checkbox to enable
With Enable link previews turned on, when a user includes an URL while creating a microblog, Aurea Social automatically looks for an image and summary to include in the resulting post. If found, the image and summary is displayed to the author of the post while they are still constructing it. The author has the option of excluding the image, or excluding the entire preview.
With Enable link previews turned off, no preview is provided of the page referenced by an URL in a post. Turning this setting off is useful for organizations which run SharePoint under https, because the image in the link preview causes a mixed-content warning (http and https on the same page) to appear to many users of Internet Explorer, every time they view a post that contains a link preview.