https://letsencrypt.org/2014/11/18/announcing-lets-encrypt.html
becoming available dec 8: http://www.tomshardware.com/news/let-s-encrypt-public-beta-december,30566.html
Hadn't seen any mention of this, and not sure if this would be at all applicable to onion sites, but I thought I might bring it up and see if anyone knows anything more about it.
Would be interesting if this could be used to get certificates for SSL/TLS onto the DarkNet.
Isn't pretty much everything going through SSL/TLS at this point?