I’ve spent a LOT of time digging into every nook and cranny for book promotion. I’ve compiled a list of about 250 sites (including about 50 Facebook groups) that will promote your book. Many are paid sites, meaning you have to pay to play, but there are a great number that are completely free.
I’ve found the best results come from paid sites while promoting a free book. The .99 book promos seem almost pointless.