Thanks for that, JohninKS. Lot more in depth about the problem than the following from the second link in my last post:

In addition to criticisms of the quality of e-books being self published, meanwhile, there have also been complaints about an increase in e-book "spam" in the Amazon Kindle store, including books that are clearly just cobbled together from bits and pieces of public domain titles or even copyrighted works (Reuters reported recently that there are DVD instruction manuals that tell users how to write and publish dozens of e-books a day without having to write anything). Some have argued that Amazon should institute a charge for publishing on the Kindle to cut down on that kind of questionable content.