COHORT ANALYSIS Create funnels that show you which features customers use, which they ignore and where the drop off points are. Make sure your funnels are accurate and keep them as clear as possible to make it easier to identify and use the necessary information. Finding out exactly what users do with your product is the first step toward a good retention strategy.
GAMIFICATON: Collecting points, chasing people in rankings and contributing to common results keep users engaged. LinkedIn, for example, have done a great job of implementing endorsements, which has encouraged members to interact with each other more. The system also means that a member who puts in the time and effort to gather a lot of endorsements is much less likely to abandon the platform.