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!
Google Forms - Simple web forms from Google.
Manuzoid - Repository that includes user manuals for various products
Qualtrics - Qualtrics is the most trusted research platform, helping brands make crucial business decisions. From surveys to insights to action.
ManualAgent - Manuals and guides