https://marco.org/2009/08/06/instapaper-pro-is-featured-in-a-book-thanks-josh
Instapaper Pro is featured in a book! Thanks, Josh Clark, for including my app.
(The book was published during Instapaper Pro 1.3’s reign. The current version is 2.1, which is much more awesome than 1.3, if I do say so myself, which I guess I do, although I’m certainly biased.)