MathJax - MathJax is a cross-browser JavaScript library that displays mathematical notation in web browsers.

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.

AsciiMath - Easy-to-write markup language and JavaScript display engine for mathematics

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.

X (Twitter) - Connect with your friends and other fascinating people. Get in-the-moment updates on the things that interest you. And watch events unfold, in real time, from every angle.

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