My Notes Keeper - Home Of My Notes Keeper - My Notes Keeper is the premier note/outliner application for Windows 9x/2000/XP/NT. It allows you to store all of your notes and information in an easy-to-use outline, where you can quickly find what you need.
Tomboy - Apps/Tomboy - GNOME Wiki!
C-Organizer - C-Organizer is a robust software tool designed for the professional manager that permits them to organize business activities altogether.
Omni Notes - Note taking open-source application aimed to have both a simple interface but keeping smart behavior
Google Keep - Capture notes, share them with others, and access them from your computer, phone or tablet. Free with a Google account.
Turtl - The secure, collaborative notebook