Slinky - Your slack links — organized!
Readwise - Effortlessly rediscover and organize your Kindle highlights
Slack It - A bookmarklet to share links in Slack with one click
Klib - Kindle & iBooks Highlights Manager
Top Daily Hunts in Slack - A simple, fast way to browse news within Slack
Clippings.io - Organize the notes you make on your Kindle