Votum for Slack - Crowdsourced lists with upvotes, inside Slack
Bionic Reading® - Did you know that your brain reads faster than your eye?
Short - The reading list for busy people
Omnivore - Omnivore allows developers to integrate with the leading POS systems, and connects restaurants to the latest technologies.
Corpus - Curate, take notes and share your reading list
Readapt - Designed for those with reading challenges like dyslexia and poor vision.