Pocket - When you find something you want to view later, put it in Pocket.
voices.live - Connect your Choir, sing and share together
Raindrop.io - All your articles, photos, video & content from web & apps in one place.
Shoutboards - Internal announcement platform for better knowledge sharing.
Tettra - Tettra is a company wiki that helps teams manage and share organizational knowledge.
Tweetflick - Save, organize & find Tweets to get the most out of Twitter