A geographical visualization is always a popular feature. In Watson Analytics for Social Media, you can use the geography visualization to inspect where social media documents have been posted.
Note from the product documentation: Geographic region is determined by the permanent location information in the author's profile and does not necessarily reflect the author's location when they created the document.
Geographical visualization
For our project, we see that most of our content sources are from North America, perhaps since Amazon headquarters is in the United States?