Imagine you start exchanging e-mails with your girlfriend and subscribed to a title from Spiderman. Under each email you sent to her, or she sents to you there will be one image/scene from the story. To read the story further you need to send and receive more emails back and forth. You will experience two narratives developing at the same time, yours with your friend and the comics. You may find parallels between two which will make your correspondence enjoyable.

This can easily be integrated to web based email programs like gmail or yahoo.