Slack App Directory - Your go-to for finding apps that work with Slack
paste.ulvis.net - Add paste
Clerk Chat - SMS for Slack
Pastebin.com - Pastebin.com is a website where you can store text for a certain period of time.
Cato - Instant Spotlight-like search for your web browser.
GitHub Gist - Gist is a simple way to share snippets and pastes with others.