Affiliate Marketing Secrets

I am having terrible trouble selling my ebook Celebrity Ghost Stories. I have done everything to promote it: put it on the front page of my true ghost stories site (which gets over 1000 new visitors every day!), mentioned it in relevant blogs and forums, promoted it on Myebook.com. Yet despite all this, I haven’t sold one single copy/1
Could it be that the paranormal ebook business is not a very profitable one? Should I pick another niche?
Huh, so much for all those who say that selling ebooks is a lucrative business!

I think that’s what it’s called.
The story is set in a future where junk food is illegal, and the main character buys it off the black-market. Describing the secret sauce running down his chin, etc…
Yahoo came up with nothing, gonna try Google.

A university medical school is affiliated with a teaching hospital. In this hospital patients have a physician (generalist) who, on needs basis, refers them to one or more specialists depending on their health problem.
The hospital has its own laboratory for performing various tests. When a patient requires tests (e.g., blood test), the specialist writes these requests and the patient presents then to the laboratory administrator. Test requests include the patient’s name, medicare card number, birth date, all the tests that are required, as well as the identification of the specialist requesting the tests and the generalist who referred the patient to the respective specialist.
This is the case, i am confused to what are the entity in this case? my guess is physicians, patients specialists and lab administrator..
I also need to create a Data flow diagram and a data dictionary.. i have no clue what those are.. help!

Although three different butterfly species all inhabit the same flower garden in an area, competition between the butterflies rarely occurs. The most likely explanation for this lack of competition is that these butterflies
A. have a limited supply of food
B. are able to interbreed
C. occupy different niches
D. share food with each other

Does anybody know a good and free AdWords guide that is suitable for newbies?.
Well, I can purchase Perry Marshal’s if I want. But since I’m planning to pass it to my team, I need the free one (I’m a member of affiliate marketing). Thanks in advance.. =)

I don’t know what “la niche” means in English.
The word “niche” in English literally means a small space in a wall where you can put something in.
This can be used to form many imageries.
Here’s an example:
“We put the statue inside the left niche on the wall.”
“It is better for a business to choose a niche in the market and specialize in it, than to expand too quickly and not be specialized in any one industry.”