Another option, if you don't mind USB, is to use Wordcycler (http://www.wordcycler.com http://www.wordcycler.com). It's free, and allows you to two-way-sync in

Another option, if you don't mind USB, is to use Wordcycler (http://www.wordcycler.com http://www.wordcycler.com). It's free, and allows you to two-way-sync individual articles to your Kindle. When you delete them from your Kindle, it will be automatically archived on the Instapaper website the next time you sync. And it titles the articles correctly. (I'm the developer of Wordcycler.)