Top 4th of July Sales Best 4K Projectors 7 Early Prime Day Deals Wi-Fi Range Extenders My Favorite Summer Gadgets Cheap Car Insurance Target's 4th of July Sale Best Running Earbuds, Headphones invests $20 million in e-book site

The online bookseller is investing in MightyWords, a unit of, which allows consumers to download digital versions of books to a PC.

E-publishing is quickly becoming a best-selling story. said today it is investing $20 million in MightyWords, a unit of, which allows consumers to download digital versions of books to a personal computer. The investment gives a 30 percent stake in the company.

Fatbrain, which sells technical books online, said that MightyWords received another $16 million in funding from several venture capital firms, including $10 million from Vulcan Ventures, Microsoft co-founder Paul Allen's venture arm. Other investors include Millennium Technology Ventures, Highland Capital Partners, and APV Technology Partners.

In the past few weeks, e-publishing has gathered momentum as several major publishing houses, including Simon & Schuster and Time Warner Trade Publishing, and some large technology firms like Microsoft have begun to see the potential of distributing books on the Internet.

This spring, online publishing got a big boost when more than 400,000 copies of Stephen King's 66-page novella, "Riding the Bullet," were downloaded for free in a test run in less than 24 hours. and currently entice consumers with free online chapters, hoping to convert the casual browser into a buyer. The next step is to bring entire novels and nonfiction books to readers over a variety of devices. Last month, Microsoft partnered with Random House to offer Michael Crichton's latest novel, "Timeline," via Pocket PCs from Hewlett-Packard and Casio.

Click here to Play
Demo: eBook
Last week,, a subsidiary of Bookspan, the world's largest book club, said it was testing several electronic book clubs that are scheduled to launch next year. On Friday, Time Warner made an investment in, a site that will allow consumers to read books on the Internet.

But while the publishers are increasingly enamored with online publishing, it is unclear whether consumers will rush to the virtual bookshelves. The industry must first overcome security and piracy concerns, as well as creating standard technologies that meet consumers' expectations for quality when downloading and reading books on portable devices.

With today's investment, will distribute MightyWords' content on its site.

MightyWords said it plans to look for other distribution deals with leading Internet sites.

Stephen Riggio,'s acting chief executive, and Diane Daggatt, Vulcan Ventures' director, will join MightyWords' board of directors.

In addition to best-selling authors, MightyWords distributes some nontraditional content such as essays, serialized pieces, speeches and movie scripts.