Instapaper, the granddaddy of “save this web article for later” readers, is free for a limited time. I’ll let Wade “World Wide Wade” Roush explain it, as he did in his Xconomy summary of reading apps, 10 Apps & Sites That Bring Back the Joy of Reading:
Instapaper works like this: Once you’ve signed up for the service, you go to the Instapaper website and grab the “Read Later” bookmarklet, a little button that you can drag and drop into the bookmarks bar of your browser. Then when you come across a Web page that you want to read later, you just click on this button, which activates a script that extracts the article text and saves it on Instapaper’s cloud servers (or, optionally, sends it straight to your Kindle reading device).
…
I love the iPhone version of the app and I use it a lot when I’m standing in line at the grocery store or killing time in between other activities. I use the iPad version for longer, more intense reading sessions at home. My favorite feature: tilt-scrolling, which uses the accelerometer in the iPhone/iPad to scroll the text up or down, depending on which way you tilt the device.
If you’d like to see a review of the latest version of Instapaper, check out this one at MacStories: Instapaper 5.0: Sorting and Filtering Options, Tweaked Interface for iOS 7 and this Lifehacker “read later” app comparison.
There you have it: Instapaper, free for a limited time. Go get it!