BTCDLC (Bitcoin downloadable content) is a platform for making storefronts for your digital content. It’s free: neither buyers nor sellers pay sales/purchase fees. (Miner fees notwithstanding, but those don’t go to BTCDLC, obviously.)
You hook up your Dropbox account and you can create shops to sell your files.
BTCDLC doesn't hold on to your money. Once a sale has resolved (i.e. delivered + downloaded or refunded), the money leaves our servers. We take security seriously, but it's even better to just not have much to steal.
Check it out, please
https://www.btcdlc.com/