Do the four things above for a little while and you will start to see your e-book begin to take on a life of its own. It will pop up in places you wouldn't expect. The owner of an affiliate program that has 6000 links to his site lives every day with the worry that his site will go down. The owner of an e-book that has 6000 sites hosting it for him has no such worry. E-books are simple to create.
Information is everywhere.
All you need to do is research it, organize it into something helpful to someone else and write it down. Your e-book will advertise your site or product longer than anything else will. Your e-book can stay on the readers computer for months and even years. A constant reminder of your site. E-books create incredible word of mouth advertising.