AllMyNotes Organizer is an outliner application for Windows, and it allows you to store all documents and notes in a single storage file.

Awesome notes is a powerful text and voice note taking application with many great features.

BeeCanvas is an online whiteboard based visual collaboration tool.

CherryTree is an hierarchical note taking application, featuring rich text and syntax highlighting, storing data in a single xml or sqlite file.

ColorNote is simple and easy to use. In any situation, you can quickly create notes and lists.

Day One is a simple journal application for the Mac, iPhone, and iPad.

Any.do is a life management and productivity app.

BasKet Note Pads is a KDE program for organizing, sharing, and taking notes.

lumio is an online content organizing platform.

CintaNotes is a freemium Microsoft Windows notetaking program.

Curio is a collection of unique hotels, each with their own history and character in cities across the globe.

DEVONthink a document and knowledge management app for the Mac.