Make Your Book Visually Appealing
To some extent the online marketing of your book works in much the same as any other type of marketing. It is maybe a little more visual than selling your book traditionally in a book store. You have to remember that people can not actually see your book, and leaf through it, you have to sell it more on the cover. Getting your readers to give you an online review may also help, after all this makes people think that if some one else has read it, and hopefully enjoyed it, then they should too.
One of the best ways to make your book visually appealing is to make sure you have a really good cover, and also give a chapter away, or at least a sneak peak. If you cannot afford to get a professional cover made you could always use pictures that you have taken yourself, with a good camera such as the Fujifilm Finepix L55 Digital Camera. These will make your book feel a bit more personal, and add interest, you can also edit them in photoshop to get your desired cover.
If you do not have a camera or photoshop then try to ask for them as one of your Christmas Gifts 2012, if not try to find a friend who could do it for you. If you are just starting out in your online book publishing journey, you probably do not have too much money to spare, so try to get help for free where you can.