Tettra - Tettra is a company wiki that helps teams manage and share organizational knowledge.
Clearbit for Slack - Send all signups directly to a Slack channel
Lurchr - Saves all your Slack links, so you can focus on work
KeePass - KeePass is an open source password manager. Passwords can be stored in highly-encrypted databases, which can be unlocked with one master password or key file.
Slack It - A bookmarklet to share links in Slack with one click
Paperbot (Reloaded) - Slack meets Pocket