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.

Typeform - Create beautiful, next-generation online forms with Typeform, the form & survey builder that makes asking questions easy & human on any device. Try it FREE!

GetSatisfaction - Get Satisfaction is the leading customer engagement platform that helps companies build better relationships with their customers and prospects, through the best online customer community.

Jotform - Free Online Form Builder & Form Creator

idea.informer - Idea Informer is a idea forum similar to uservoice or getsatisfaction.

Botsify Conversational Forms - Lead generation forms for chatbots