TiddlyWiki - a non-linear personal web notebook
Exstora - Built-in quick note: save ideas, contacts, interesting facts
wikidPad - wikidPad is an application for storing thoughts, ideas, todo lists, contacts, or anything else that user can think of to write down.
OneNote Online - OneNote Online, part of Office Online, is the online version of Microsoft OneNote.
Knowledge Workshop - Learning Management Solutions provides innovative and reliable software for the knowledge worker.
Nikabot - A Slackbot that keeps track of what your team is doing so you don't have to.