I came across DailyLit via unclutterer.com.
Essentially, you can buy an e-book (looks like they’re around $5), but it comes to you in little email installments, at a frequency you set. This is for people who don’t have time to read a book, but do read lots of email everyday. You almost fool yourself into reading a book.
The catch seems to be that they don’t have much in the way of selection, only about 750 titles available. But, you could knock out one of the 422 public domain classics for free.