ManualsLib - Just enter the keywords in the search field and find what you are looking for!
FaqFox - Find the questions your target audience is talking about
Internet Archive Manual Library - Internet Archive Manual Library is your go-to source for viewing the big collection of datasheets, instructions, and guides written for a wide range of products.
HelpDocs - Educate your users with a super simple knowledge base that’s built for teams just like yours.
ManualAgent - Manuals and guides
Dr.Explain - Dr.Explain software is a help file authoring tool.