Interesting little website informs you of freebies and discounts on eBooks. https://www.bookbub.com/home/ And, apparently if you want them to promote your marketing giveaway they are selective about taking you on. Discussion on Amazon BookBub review on Sitejabber BookBub review on Highya (first time I've heard of either of those web sites as well) BookBub vs BookGorilla vs The Fussy Librarian – Which is the best ebook marketing service? (As if I didn't have enough to research already. ) SelfPublishingReview: 35+ Alternatives to BookBub (Do you need an alternative?) Huff Po Indie Authors Questioning BookBub My my, the plot thickens.