Metastream - Watch streaming media with friends
Juicebox - Spectacular HTML5 Image Galleries Made Easy
Watch2Gether - Watch2Gether is an app that allows multiple people to watch the same content simultaneously and interact with each other while watching.
Ludus - Limitless creativity for your slides.
StreamParty - StreamParty is a watch communiry, that allows you to watch video streams in sync with the people you care about, on multiple services.
Juice Analytics - People-friendly reporting made easy