I have been reading a bunch of these books recently. And I am getting some ideas on wht is going on. Sometimes the free book is the first one in a series of books. I suspect the authoer is trying to get me hooked so I buy the rest of the series. Other authors are brand new. I bet they are just trying to prove how good an author they are. Then I might purchase some of their other titles.
Another technique might be getting buzz about a book. If you can get enough downloads, driven by a free price, your book could rise up in popularity. Then the price could be changed from free, allowing the author to profit.
Perhaps there might be some authors who just want to give their works away. Does not make much business sense. But hey. Not everything needs to be done to turn a buck I guess.
