FeedbackSpark's answer
Range of powerful features designed specifically for digital product teams:
Back Market - the refurbished (super) market
Readwise - Effortlessly rediscover and organize your Kindle highlights
Survey Monkey - Create and publish online surveys in minutes, and view results graphically and in real time. SurveyMonkey provides free online questionnaire and survey software.
Clippings.io - Organize the notes you make on your Kindle
Love & Robots - Create your own 3D printed jewelry & accessories online
Klib - Kindle & iBooks Highlights Manager