In today’s high-tech world, virtually anything can be nudged into the 21st century with a quick prefix—e-mails, e-businesses, e-commerce and, of course, e-books. As its name implies, an e-book is a title that’s available in electronic format, allowing the reader to peruse its contents on a computer screen or portable device. Generating nearly $32 million* in revenue in the United States in 2007 and billions more in countries around the world, downloadable e-books are encouraging some tech-savv