A fork of Notational Velocity with MultiMarkdown preview and advanced Markdown editing capabilities.
Minimal note taking application for mac os x
NOTATIONAL VELOCITY is an application that stores and retrieves notes.
Must have hack by Steven Frank.
Memonic is a personal organizer to save and use just about any information worth keeping. It's a bit like a brain extension for notes, memos, thoughts, clips and much much more.
Plain-text file notepad with markdown support and ownCloud integration
Simplenote syncing note-taking application, inspired by Notational Velocity and ResophNotes, but uglier and cross-platformerer.