Scrapbox - A new style of note-taking that lets you create, discuss, and learn together in one self-organizing space.

OneNote Online - OneNote Online, part of Office Online, is the online version of Microsoft OneNote.

Unit Notes for iOS - A simple and powerful note-taking app.

OneNote - Get the OneNote app for free on your tablet, phone, and computer, so you can capture your ideas and to-do lists in one place wherever you are. Or try OneNote with Office for free.

Doceri - Doceri is a scalable suite of products that allows a teacher or presenter to control a computer's desktop, to control audiovisual technology, and to annotate any presentation in real time with the Apple™ iPad™.

DEVONthink - DEVONtechnologies develops DEVONthink, DEVONagent, and other Mac and iOS apps for document and information management and web research.