Better Notes - Simple notes app that ties notes together with #hashtags

Notational Velocity - Notational Velocity: modeless, mouseless Mac OS X note-taking application

Paper - Super-clean writing space with a lot of configurability that stays out of sight when you don’t need it.

Notational - Notes at the speed of thought

Evernote - Bring your life's work together in one digital workspace. Evernote is the place to collect inspirational ideas, write meaningful words, and move your important projects forward.

flomo - The minimal memo-taking tool to empower better thinking