The best stories of the week from across the web on e-books and self-publishing.

1. Can a ‘Spotify for books’ really work? (paidContent)

2. 29th Street Publishing wants to make selling magazines for iPads as easy as blogging (NiemanLab)

3. When self-published e-books become best-sellers (Forbes)

4. Kobo, and another two big players, landed in Brazil (dbw)

5. Why e-reader and tablet companies fail (Good e-Reader)