Taco Digest - Customizable personal email newsletter created from your favorite sources.
Hacker News Stack - Focus on the really fresh and unread news in Hacker News.
LetterHunt - LetterHunt connects you to 10,000+ niche, active newsletter writers to promote your product.
Hacker Newsletter - Best of Hacker News in your inbox every Friday.
Bytesized - Weekly newsletter covering important ideas for developers 💌
Box Piper Hacker News - Re-Imagined Hacker News for this decade.