Here is a free site to promote your books.
Called Ask David it is just a matter of filling in a form. The one criteria is that your book must be on Amazon...a given for most books these days.
The Mask of Deceit My spec fiction novel is hyped on AskDavid
Literary Licence This is my humorous novel
After the Rains & other Stories and here are my short stories
As a marketing tool any web site that has a rating in traffic should be on the authors shopping list.
this is my promotional page