Some e-book stores will send e-books to your kindle via e-mail but don't provide the facility to send them to non-kindle e-mail addresses. I was investigating whether it would be easier to set this up and then automate download from Amazon to my computer for importation into Calibre when I discovered I can no longer download my copy of Information Doesn't want to be free. On selecting "Download and transfer via USB" I am told."No device is eligible for Downloading the selected content". A drop-down menu is provided that lists devices associated with my Amazon account but they are all grayed out.

It looks like Amazon will no longer allow me to download even DRM free content unless I can prove to them that I have an ancient kindle that can't connect directly.