TakeNote - A web-based note-taking app with GitHub sync and Markdown support.

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.

JustNotepad.com - A free online notepad allows you to create any text or notes in your web browser.

LibriVox Audio Books Supporter - LibriVox Audio Books Supporter app comes up with an extensive collection of audiobooks through which you can search for your favorite book and listen to it in your native language right at your fingertips.

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

FLOOX - FLOOX app allows you to select a book from the internal storage to listen to it in the audio version by selecting the desired text-to-speech settings.