Have you looked into Siacoin? You can rent out your drive with Sia and it has many exciting developments coming up regularly.

https://forum.sia.tech/topic/106/what-is-sia

Live network overview:
http://siapulse.com/page/network

Slack invite: http://slackin.sia.tech/ | Reddit: https://www.reddit.com/r/siacoin | Twitter: https://twitter.com/SiaTechHQ