Makagiga is an open-source, easy-to-use, portable application for doing a variety of tasks, such as todo listing, text editing, or RSS reading. Plugins are used to implement its various capabilities.
dMind is a minimalistic yet feature-rich note-taking
dMind is a minimalistic, distraction-free yet feature-rich note-taking app. Use a modified and extended version of markdown to take your notes.
Are you a visual learner? dMind has built-in support for diagrams, tables and math expressions.