Random House U.S. eBook sales increased 300% in the first half of the year, and comparably in Germany and UK.

According to a press release from media conglomerate Bertelsmann, which owns Random House, revenues for the publisher grew from €733 million (about $1 billion), for the first six months of 2009 to €790 million (about $1.08 billion) for the same period this year.

In the first half of the year, Random House had 138 New York Times bestsellers, including the Stieg Larsson Millennium trilogy, which sold 6.5 million print and eBooks in the U.S. and Germany during the half year.

Via TeleRead.