The Google Cemetery - A list of dead Google products and why they died
Readwise - Effortlessly rediscover and organize your Kindle highlights
Product Graveyard - Brave indies face product failure, say goodbye and reboot.
Clippings.io - Organize the notes you make on your Kindle
Reject Them Softly - Rejection letter inspirations from companies
Klib - Kindle & iBooks Highlights Manager