According to an article from Publisher's Weekly, the e-book market (which has been especially kind to science fiction romance) has something to crow about. In 2009, e-book sales were up 176% (based on the sales of thirteen publishers) to $169.5 million, while print trade books declined slightly.
Very good news for the e-book industry, but don't get too excited by the news. Trade print books still dominate the market. The seemingly monstrous jump in e-book sales only equates to an increase of from 1.2% in 2008 to 3.3% in 2009. Definitely a lot of room left for growth.