Instapaper is a great free web app that lets you save websites, articles, and blog posts to read for later. You can easily convert all of your saved articles into a Kindle document.
This is a great little app if you prefer reading on your Kindle over your computer (as I do). It’s also great if you come across articles that you’d like to read “sometime” but don’t have time for right then (as always happens with me).
Below is a video showing how it works. [Click here if you can't see the video.] After watching the video, just head on over to Instapaper.com, sign up for an account (it’s free and takes just a few seconds), and install either the Instapaper bookmarklet (good in any browser) or the Instachrome Chrome extension if you’re a Chrome user.