Have you heard of this practice?
Are you tempted to go to one of these sites and acquire or "SHARE" an author's work?
If so, you are not only ROBBING an author of income she worked hard to gain, but you are putting her or him OUT OF BUSINESS.
Which means that you are also eventually going to have no books to read.
Kind of like sawing on your own wrists.
Authors work for the love of writing.
But they have to eat and pay the electricity bill, just like any one else.
In Europe, a recent class action suit resulted in a multi-Euro fine to such a company that shares files and commits the crime of copyright infringement.
We authors pray for such a case here in the States as well and soon!