I have no idea how effective video trailers are for books, and from the forums I’ve lurked on I don’t think anyone else does either. But they are fun. I just did my first one, a one minute teaser for my new ebook BEACH BUM DELIGHT. You can see it on youtube (http://youtu.be/0etnMJvJ7N4) . I hope you get a kick out of it. If nothing else it was fun to play with sand and sea and sex imagery.