I stumbled across a potential author promo site I’d like to share: http://authorshout.com/cover-wars/
Authors can submit their book cover (there is approximately a 2 month waiting list). 15 covers are hosted each week. Each cover appears to have a clickable link to their book/purchase page. People vote for the cover they like the best and the cover that wins the most votes gets promoted for one week on their site, on “shout outs”, and their newsletter.
and now… this... premades
$30 (this could be useful for GLBTIA, too)