Entangled is one of a growing number of “boutique” publishers that seek to strike a balance between the freedom of self-publishing and the structure of working with a traditional publisher. “We believe authors who write great books should receive a majority of the profits,” the company writes in its mission statement. “We also believe authors interested in the lucrative indie publishing model shouldn’t have to sacrifice quality editing, commercial covers, or the power of a New York-style marketing machine.” Entangled doesn’t offer advances and pays authors royalties higher than what they’d receive from a traditional publisher but lower than they’d get if they self-published. In return, it provides them “strong editorial support, a publicist, a personalized marketing plan, and world-class distribution for all of their titles.”

Until now, that distribution has been primarily digital, though Entangled was working with Publishers Group West to distribute a few of its titles. With the Macmillan partnership, though, “Macmillan will distribute English language e-books of Entangled’s new publications in all domestic and international markets and for all platforms where Macmillan currently does business.” That’s beneficial for Entangled because it ensures a much broader reach than it could manage itself. And it’s good for Macmillan because it gives the publisher an entrance to the hot indie market without having to seek those titles out itself. Simon & Schuster ended up buying The Marriage Bargain in a seven-figure deal last year, but this deal should give Macmillan first dibs.

“We are hugely impressed with [Entangled CEO] Liz Pelletier’s vision and what she has accomplished in such a short time,” Macmillan CEO John Sargent said in a statement (found via Dear Author). ”We found her out-of-the-box approach to publishing incredibly exciting and saw potential to work together with her on several levels. We think Liz and Entangled have found a new way forward and we think we can help build on that remarkable success.”

This weekly feature tells the backstory of how one e-book became a bestseller, and highlights bestselling titles that are selling more copies in digital than in print.

This week’s featured title

The book: “Unintended Consequences: Why Everything You’ve Been Told About the Economy Is Wrong” by Edward Conard (Penguin/Portfolio, list price $14.99). “Unintended Consequences” is #24 on the New York Times nonfiction e-book bestseller list this week.

What it’s about: A former Bain exec explains how to grow the economy.

How it became a bestseller: “Unintended Consequences” was supposed to go on sale on June 28, but the New York Times Magazine decided to do a feature story on it in the May 6 money issue. Penguin was able to move up the e-book’s publication date to May 7, but the print book won’t be released until June 7.

“Unintended Consequences” on … Amazon | Apple | Barnes & Noble | Google | Kobo

New York Times bestseller list, week of 5/27/12

Here are the titles in the top-35 that appear on the e-book bestseller list, but not on the print bestseller list (click the link to expand the chart).

USA Today bestseller list, week of 5/10/12

USA Today includes all formats and genres in one list and notes which format of a book sold best. Here are the titles in the top-35 where e-books outsold print (click the link to expand the chart).

This week’s featured title

The book: “A Brewing Storm” by Richard Castle (Hyperion, list price $2.99). “A Brewing Storm,” an e-single, is #13 on the New York Times e-book bestseller list this week, and #39 on the USA Today list. As of this writing, it’s #30 on the Nook bestseller list and does not appear on the Kindle bestseller list.

What it’s about: To be clear, Richard Castle is not a real person — he’s a character on the ABC show “Castle,” where he’s played by actor Nathan Fillion. On the show, Castle is a mystery novelist and author of the “Heat Wave” series. Hyperion, which is owned by ABC, released the “Heat Wave” titles as actual books. “A Brewing Storm” is the first in Castle’s “Derrick Storm” CIA series, which he also writes on the show. (Um…get it?) ABC will release two more Derrick Storm e-singles this summer.

How it became a bestseller: “Castle” fans had requested Derrick Storm books, which are often mentioned on the show. Hyperion hopes the “Storm” series will serve as a bridge between seasons 4 and 5 of “Castle” — the season 4 finale aired on May 7.

Members of “Club Castle,” the fan community on ABC’s Castle website, got early access to “A Brewing Storm”‘s cover by completing a trivia challenge March 26-28. They saw the cover before retailers did. ABC.com also posted three free chapters of the book. And the full-length “Heat Wave” was chosen as an Amazon Kindle Daily Deal on May 8, which likely drove readers to the e-single as well.

“A Brewing Storm” on … Amazon ($1.99) | Apple ($2.99) | Barnes & Noble ($1.97) | Google ($2.51) | Kobo ($2.99)

New York Times bestseller list, week of 5/20/12

Here are the titles in the top-35 that appear on the e-book bestseller list, but not on the print bestseller list (click the link to expand the chart).

USA Today bestseller list, week of 5/3/12

USA Today includes all formats and genres in one list and notes which format of a book sold best. Here are the titles in the top-35 where e-books outsold print (click the link to expand the chart).

This week’s featured title

The book: “The Marriage Bargain” by Jennifer Probst (Entangled, $2.99). “The Marriage Bargain” is #11 on the New York Times e-book bestseller list this week, and #20 on the USA today list.

Copies of “The Marriage Bargain” sold: 152,668

What it’s about: A bookstore owner casts a love spell to save her home. When a billionaire offers her a marriage in name only, she accepts, but neither bargained for love.

How it hit the bestseller list: Probst, the author of several erotic and contemporary romance titles, built up her presence on social media months before the book was published in February. She did a 20-stop blog tour in early 2012 to promote the book. Entangled bought a Goodreads ad and “steady positive reviews began to trickle in from various outlets.”

A sequel, “The Marriage Trap,” comes out in June, with a third book in the series, “The Marriage Mistake,” due in the fall.

“The Marriage Bargain” on … Amazon |Barnes & Noble | Kobo

New York Times bestseller list, week of 5/13/12

Here are the titles in the top-35 that appear on the e-book bestseller list, but not on the print bestseller list (click the link to expand the chart).

USA Today bestseller list, week of 5/3/12

USA Today includes all formats and genres in one list and notes which format of a book sold best. Here are the titles in the top-35 where e-books outsold print (click the link to expand the chart).