If you have a eink Nook with a micro SD card slot you can also try this hack
http://nookworks.blogspot.com/2012/0...d-card-as.html
Note I did not make this hack, but I have used it and it works on my old Nook Simple Touch and a Simple Touch with Glowlight. You'll need/want two micro SD cards. What this does is redirects the downloads from the internal and inaccessible to the user (without rooting) partition to the SD card. All your ebooks will then download to the card and you can just plug the Nook in and snatch them. You'll still Need Alf's tools if you want to move them to another ereader.