I use it in conjunction with my e-reader (Sony) and Calibre. I have a bookmarklet I use to send long-ish articles to Instapaper, then I read them on the reader

I use it in conjunction with my e-reader (Sony) and Calibre. I have a bookmarklet I use to send long-ish articles to Instapaper, then I read them on the reader. To be honest though, it's basically just an excuse to use the e-reader.