21
votes
2answers
545 views

What's better for invitation emails: a temporary password or a one-time login url?

Our web app allows our customers to invite their collaborators into their account. They can submit the new user's email address, and our app sends the new user an email inviting them to login. Once ...
5
votes
3answers
187 views

Logging in with email only

I'm working on a blog and there will be an option to post a comment. I could implement registration with username, password and email — the standard way. I could implement 3rd-party authorization ...
4
votes
3answers
336 views

Is offering more than one openid/social-sign-in option a good idea?

Lots of sites nowadays offer the option to log in via Google, Facebook, LinkedIn and so on, and sometimes a standard username/password option as well. While this goes a long way toward helping users ...