I'd rather use Mozilla Persona based login systems than OAuth based ones. From both a user and a developer point of view, Persona is a very refreshing approach to identity instead of OAuth.
I'm having trouble finding sites that use Persona as a login option. Does anyone have any examples? Trovebox seems to have a demo site up, but I was not able to actually log in to my account.
http://scanner.rachelbythebay.com/main - this one's been using Persona since it was called browserid. (Hit the gear on a call to see the login prompt - you only need the login for certain extended functions)
Exactly. I hope so much that Persona takes off. It's a breeze to implement, taking barely five minutes to add to your site from scratch, versus the hours traditional sign up takes, it's decentralized (you can easily become your own provider, etc https://www.persowna.net) and it's very very convenient.
If you're making something, please please add Persona to the list of login methods. If you're currently using emails for logins, it's even backwards-compatible.
For those wanting to know more about Persona, check out https://login.persona.org/about
also since Persona is from Mozilla, you can see all the code and development and you know that privacy and user safety are number one priority.