Announcify is a free text to speech application that is available as a Chrome browser extension. With Announcify installed in your browser any time you're viewing a webpage you can simply click on the Announcify icon in your browser and have the text of the page read to you. A bonus aspect of using Announcify is that in order to make a webpage easier to read it enlarges the text of the webpage and removes all sidebar content. In the video embedded below I provide a short demonstration of Announcify in action.
Applications for Education
As I mentioned in the video above, Announcify could be a great little tool for students that need audio support when they are reading online content. The enlargement of text and removal of sidebar content could also help students focus on what they are trying to read on a webpage.