Nolt - A fast & beautiful way to collect user feedback
Roadmap - Collision avoidance for projects and people
UseResponse - Open-source, self-hosted customer feedback software, live chat and helpdesk system that you can install on your server. Organize documentation using knowledge base and get feedback from social networks with centralized system
Customer Feedback Portal - Ask customers what you should build next
UserVoice - UserVoice integrates easy-to-use feedback, helpdesk, and knowledge base management tools in one platform that empowers users to speak and companies to understand.
Dovetail - Mobile Cloud-Based Dental Software