We have changed the wording to "ebooks and ebook-related deals". Please note that this is not an additional rule - it simply codifies the description of this forum, which is "Find hot e-book deals and freebies, and other noteworthy e-books resources". The purpose of this forum has only ever been for deals and resources which are at least vaguely connected to ebooks and ebook readers. Yes, that would include such things as MP3 downloads, since many reading devices can play audiobooks and MP3s.
Hope that clarifies the situation.