SHA-2 Certificates Now Available from SSLMate
sslmate.com
sslmate.com
Wake me when you have ECDSA-secp256r1-SHA256, ECDSA-secp384r1-SHA384, or (when specified) whatever replaces/updates them.
Part of the problem is that certificates are valid for too long and it's too damn hard for website operators to upgrade their certs when something better comes along. That's what SSLMate is hoping to fix.
There aren't any discounts for open source projects at the moment, but it's something I'll consider. GlobalSign does give away free certs to open source projects (https://www.globalsign.com/ssl/ssl-open-source/), though you wouldn't be able to use any of SSLMate's tools or automation with one of their certs.