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.
https://rachelbythebay.com/store/ - just put this up yesterday - easy enough.
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)
Click the "Log In" button at the top to see the Persona login screen.
http://www.deadmansswitch.net/account/login/ (click "BrowserID login", my UX isn't great).
http://www.yourpane.com/ (click Persona without entering an email address, my UX isn't great).