Amazon Publishing is continuing to broaden its distribution channels, as the New York-based imprint has formed a partnership with Ingram Content Group that will make the company's e-books available to competitors such as Apple, Barnes & Noble and Kobo. As you may be aware, there's some uneasy tension between the rivals, as Barnes & Noble has previously removed Amazon's print editions from its retail shelves in response to the company's former e-book exclusivity in the Kindle Store. It remains unknown whether any of the competitors will indeed choose to sell Amazon's content in electronic form. It's also worth pointing out that because deal applies only to Amazon Publishing's New York-based imprint, the company's west coast division is excluded from the distribution deal. Regardless of how things shake out, it's encouraging to see Amazon extend the olive branch -- now let's hope the competition reciprocates.