Canny - Canny helps you collect and organize feature requests to better understand customer needs and prioritize your roadmap.
productboard - Beautiful and powerful product management.
RealEye - Online Research Platform with Webcam Eye-Tracking.
ProdPad - ProdPad helps your team gather ideas, surface the best ones and turn them into product specs, and then put it all on a product roadmap.
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
ProductPlan - Cloud-based product roadmap software solution