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
UsabilityTools - Where UX meets Conversion. Unlock the Potential Behind Remote Research and Testing
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.
EnneaApp - A complete mobile Enneagram guide
Zendesk - Zendesk is a beautiful, lightweight help-desk solution.
Form Analytics - Improving online forms is the fastest way to optimize conversion.