Completed: 1962 Link Diversity Insight. 

Overview

The insight has a monthly and weekly version, each insight collects the links a user shared through their posts or tweets within the time frame and checks if any website accounts for over 50% over the links shared.
If the over 50% condition is met the insight generates and encourages the user to share links from different websites. The insight text is displayed with a pie chart of either the last 100 or 50 links depending on how many links are stored.