You can curate an article on your site/online site to be featured in your Share widget using the Engage.Social Plugin.
Step 1: Install Plugin:
Step 2: Go to the website article you want to curate and click on Engage.Social Plugin
Step 3: Curate an article into the widget's content stream
Step 4: Go into the curation stream and feature the article by clicking on the feature (Star button) on the article.
Article will be featured on the Trending page of the widget.