Do you all remember this excellent blog post Therese Walsh of Writer Unboxed wrote for us last year about BookBub? I learned so much from it.

Therese goes even more in depth with BookBub on Writer Unboxed today--you should definitely check this out.

Something to be aware of with Bookbub-- they require a minimum number of reviews of a book before they will consider promoting it. That's a huge hurdle for beginning authors because you may have to sell hundreds of books to get even a few reviews. They need to promote so they can increase sales, but until they have steady sales, they can't promote.    Also, Bookbub is not a free promotional site. Depending on the genre, it can be quite expensive to run a promotion.

All that said, they are generally considered to be the gold standard among book promotion sites.