Subtext, the collaborative reading app, free at the time of this post, has an option that does just that. Inside the app you find the article on the Internet, add it to your Subtext bookshelf, and use the "play" button when reading the article. The voice reading the article provides good articulation with voice inflection for a computerized reader, and the app highlights which sentence is being read.
Let us describe the steps here.
A. Open the subtext app and find Add Books and Docs button
B. Choose to add "Read web pages in Subtext"
C. Find your webpage/online article, use the google search tool from subtext if needed, and then click Add to Subtext bookshelf button. Close this window when finished.
D. On your book shelf click Read It button
E. Find the Play button when reading an article
F. Click settings (gear in upper left) to turn on this feature and set the reader speed.
Subtext has much more to offer, which we will cover in a future blog post. However, this feature can be a great addition for your reading resources.