Lurchr - Saves all your Slack links, so you can focus on work
Tweetflick - Save, organize & find Tweets to get the most out of Twitter
Slack News Feed - Get the top posts from every Slack chat you're in.
Twitter Bookmarks - Create shortcuts to your favorite users/tweets on Twitter
Tettra - Tettra is a company wiki that helps teams manage and share organizational knowledge.
My Twitter Bookmarks - Easily categorize your twitter bookmarks to be read later