FeedbackSpark's answer:
Range of powerful features designed specifically for digital product teams:
DISQUS - Disqus is a global comment system that improves discussion on websites and connects conversations across the web.
Back Market - the refurbished (super) market
Commento - A fast, bloat-free comments system to foster discussion on your website
Tracksuit - Beautiful, always-on, and radically affordable brand tracking for modern consumer brands. Tracksuit is the new way to measure, understand and communicate the value of brand.
HashOver - HashOver is a PHP comment system intended as a replacement for services like Disqus.
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.