Speechy - Speechy is an app by Twelve Stars Software that comes up with features to help you in reading text in a variety of different formats such as pdf, txt, EPUB, webpages, and many others.

Notepadqq - Notepadqq is a linux clone (identical application) of Notepad++

NoteAway - NoteAway is the simplest, most convenient way to take quick notes on OS X.

TED Notepad - TED Notepad is a portable text editor software that deals with a large variety of text processing tools, supplemental text clipboards, high accessibility through hotkeys, and a customizable number of settings and options.

OnlineNotepad.org - Free browser-based text editor

Secure Notepad - Secure Notepad is a note-keeping app that saves all your sensitive documents in an encrypted form.