See that logo on the right? That shows I belong to, and actively support, the site with that name. Here‘s a link to the site. Readers will find books there, categorised by author and by genre.
Authors can get a listing there. Author members support each other with shares and reviews.
The developers are authors themselves, all independently published, many with ‘day jobs’.
There is an associated Facebook group and a hashtag for tweeting: #IASD. Some of the members have produced an anthology that they’re selling to support the UK’s Macmillan Cancer Support.