Some have expressed their dismay at sales. There are many places to advertise. I have used this service several times. I spend as little a $10 once in a while and actually get a royalty deposit from my publisher for $35 to $60 dollars a quarter (not bad when most of your books are sold for .99 cents and are kindles etc.). Worth it to say you're a paid author!
Check out the link and one of my books there being advertised today...
authorsxp.com


June
Free and bargain books - ebooks, paperbacks and audio books - for Kindle, Nook, and others. FREE to join + tons of giveaways every day! Work with authors, read