Survey Monkey - Create and publish online surveys in minutes, and view results graphically and in real time. SurveyMonkey provides free online questionnaire and survey software.

ManualsLib - Just enter the keywords in the search field and find what you are looking for!

SurveyJS - Simplify data collection in your JavaScript application with SurveyJS UI components. Create and style dynamic JSON-based forms using a fully integrated form builder that features a CSS theme editor and GUI for conditional rules and form branching.

Manuzoid - Repository that includes user manuals for various products

Matter - Create a feedback-focused culture in Slack with Matter!

Dozuki - Dozuki is a web-based tool for creating and distributing step-by-step documentation.