NoteAway - NoteAway is the simplest, most convenient way to take quick notes on OS X.
HelpDocs - Educate your users with a super simple knowledge base that’s built for teams just like yours.
TakeNote - A web-based note-taking app with GitHub sync and Markdown support.
SkipFlag - AI knowledge base that builds itself from your communication
JustNotepad.com - A free online notepad allows you to create any text or notes in your web browser.
HelpSite - HelpSite is a simple service to help your setup the perfect support centre or help site.