Mrs.Joseph - You might want to read through this thread of somebody who did manage to donate an Overdrive book to his library. As you can see - it was not a simple process.
I am actually kind of surprised that Libraries haven't just jumped onto this yet. Imagine webpage Wishlists of books where people could click and donate. I agree with you 100% - we should have this.
https://www.mobileread.com/forums/sho...drive+Donation