Smashwords is an ebook distribution platform and store for authors and publishers to sell and market their digital books globally.

IngramSpark is a self-publishing company offering professional quality print-on-demand, ebook creation, global distribution, and marketing resources for authors.

Draft2Digital is a self-publishing platform offering free formatting, wide distribution, and print-on-demand services for authors.

PublishDrive is a self-publishing platform for indie authors and publishers to distribute ebooks, audiobooks, and print books globally.

BookFunnel is the best author service for ebook distribution and is used by indie authors to streamline their reader engagement.