You can archive it and then the next time you sync with B n N it will go into the archive file in case you ever want to loan it out or download it again. Once you are online and want it deleted you can delete it from the library. The good thing about archiving is that it lets you keep a copy just in case but won't download again like it would if it was in the reqular library. I have the Nook 3g and the Nook Color and love them both.