Formatting e books with TOC and one new book

I've now finished updating all my old e books, so the formatting is as close to perfect as I will come. I've also added an interactive Table of Contents to most books. And, I now have a new title in the Nook store. It will be up on Amazon soon. I'm exploring the possibility of putting titles up for free in places, but I don't know if I'll ever be able to do that, because it might conflict with Amazon's policy. I'm still trying to gather information about that so I can make a careful decision before doing so.

For Nook