Intercom.io is full of nice little features and "social profiles" is one of them. Not part of the core product, but at Deepfreeze.io we've found it to be extremely valuable.
I will describe here how we integrated Intercom with our invitation and registration workflow at deepfreeze.io to send user notifications, and how this helps us deliver better services.
How moving unused or rarely used files from Dropbox's hot storage to deepfreeze.io's cold storage reduced my storage costs and made my Dropbox account more manageable.