Whatis - Manage & organize your team's knowledge straight from Slack
WhatsApp Business - Communicate more efficiently with your customers
Slack-News - Read news from multiple sources within Slack by just typing
Rebrandly - Rebrandly is the easiest way to create, share and manage branded links.
Slack It - A bookmarklet to share links in Slack with one click
share.link - A fast and easy way to organize and share your links