FeedbackSpark's answer:
Range of powerful features designed specifically for digital product teams:
PitchWall - Browse new startups, and submit your mobile app/games startup's beta page here.
Back Market - the refurbished (super) market
BetaList - BetaList provides an overview of upcoming internet startups. Discover and get early access to the future.
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.
AlternativeTo - AlternativeTo lets you find apps and software for Windows, Mac, Linux, iPhone, iPad, Android, Android Tablets, Web Apps, Online, Windows Tablets and more by recommending alternatives to apps you already know.
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.