I've offered books here on the site, but I've not sold one so far. I think Amazon is just the easier "click" for many of us: we have our account set up, our credit card logged, and if we can add another book/expensive shampoo/joint tablets for the dog/chatreuse shoe polish to the order, we can even wangle free shipping.
The book isn't the only thing I tout for online sales. I have an Etsy store that allows me to believe my obsession with thrift stores and all things mid century is not a symptom of hoarding: it's stock adjustment. Etsy has three categories: craft supplies, vintage, and homemade. Most of my stuff goes in the "Vintage" section: all manner of silks, 70s clothing, even the odd Kreiss dancing hippo. And I have a few odds and ends in "Craft Supplies"--mainly vintage zippers and bindings. But nothing in "Homemade." That is, nothing until last week.
Last week, I posted my novel "Sticklebacks and Snow Globes" on the store under "HomeMade." It wasn't an "under-the-counter" or renegade step. I contacted Etsy and put my case: I "made" the book in that its characters and settings came from my imagination and the words were produced by the action of my fingers on my keyboard; and I sign each one, so each "unit" is inscribed by hand. I was impressed by their reaction. "Of course," they said. "Post away!"
So Sticklebacks is now up with the hippo, some Don Draper ties and a kickin' suit from the 60s. I've sold one so far. I'm hoping to sell a few more. I'll let you know how it goes. Because if it flies, it might be the way to go for those of us with small independent publishers with not much marketing money. It might be of interest, too, to the self-publishers.