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
Trailblazer - A new architecture for Rails.
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.
ShopperMX - InContext is the global leader in scalable web-based virtual reality solutions for retail, dedicated to optimizing the in-store shopper experience.
Zendesk - Zendesk is a beautiful, lightweight help-desk solution.
VenueOps - Other Retail