A login or logon (also called logging in or on and signing in or on) is the process by which individual access to a computer system is controlled by identification of the user using credentials provided by the user.
Jeff Atwood at his best. In this article Jeff explores "Logging in". Something that seems so trivial. A simple form with two fields, a link, and two buttons. And yet it's often extremely complex and confusing.
As time goes on I find myself increasingly annoyed with login forms. As password managers like 1Password (which is what I use) and Chrome’s password manager (which I also sorta use) become more popular, it’s important for websites to be aware of how users go about logging into their sites.