My baby's timeline/Demo: https://www.getbabydigest.com/timeline/santiago
It's cool because:
* It solves a key problem for parents: How do I easily share my baby's pictures & videos privately without requiring my friends and family to sign up or install something?
* It automatically finds pictures of your baby on your Facebook feed and pulls them into your baby's timeline, so that your grandmother can see them.
* Built in SF with my buddy and I using Django/Python, MongoDB, AngularJS