Converting Ebooks with Calibre - ProfHacker - The Chronicle of Higher Education:
"Even if we’re not “Kindling the Classroom,” there are a lot of us out there using ebook readers for our own reading. Here’s the catch: a lot of the materials we want to read don’t come from whatever bookstores might work with our readers. We might want to load journal articles, books from Project Gutenberg, or even our own work onto our readers. We might even want to read a file format that the reader we own doesn’t support. Depending on the reader we own and the format of the item in question, we may be able to just sideload the content—but that might not work for everything.