Instapaper v5.2 adds familiar yellow-marker highlights to your saved articles. This doesn’t sound like much, but it will change how you use the read-later service. Instapaper is the O.G read-it-later app, letting you save those longer articles you find on the web, in Twitter, in your RSS reader or anywhere else. You send these articles off to Instapaper via a bookmarklet (or using the third-party integration from many apps), whereupon they are cleaned of clutter and saved for you to read off line.
This seemingly small update changes the game. Before, Instapaper was a transient place for long-form articles — you’d read them and then archive them. Now it’s a place to organize and revisit articles, turning your collection of clippings into a library of annotated notes. And for the makers, it represents a way to make more money for the app, by finally adding a killer reasons for us to buy the $1-per-month subscription.