Hacker News Stack - Focus on the really fresh and unread news in Hacker News.
Hacker News-cli - Browse Hacker News from your Terminal
Learnerd - Get your Hacker News fix inside Facebook Messenger
Hacker Newsletter - Best of Hacker News in your inbox every Friday.
Slack-HN - Read Hacker News right from Slack
Hacker News Front Page Explorer - A database of top ranking Hacker News front page posts