Notepad++ - A free source code editor which supports several programming languages running under the MS Windows environment.
WriteXO - A cloud based notepad made for writers by writers.
Sublime Text - Sublime Text is a sophisticated text editor for code, html and prose - any kind of text file. You'll love the slick user interface and extraordinary features. Fully customizable with macros, and syntax highlighting for most major languages.
Edit Pad - Fast, web-based plain text editor for quickly taking notes online.
Notepadqq - Notepadqq is a linux clone (identical application) of Notepad++
EditPad Lite - EditPad Lite: A fine text editor with all the necessary basic features. Free for non-commercial use. An ideal replacement for Notepad.