We have just enabled support for logging in with custom OpenID providers.

The login page now has an optional “Enter your OpenID Url” field.

If for some reason you don’t have an account in any of the “big providers” (we have received feedback from users with legitimate reasons for that), now you can still use FS, even if you run your own OpenID provider server.

This question on stackoverflow has a short list of other openId providers if you have an account on them.

FS authentication is implemented with django-social-auth, and here’s the code for the login page.