In 2021 I started LoginSeekGo, which is now the internet's biggest specialist directory of login pages.  

In computer security, logging in (or logging on, signing in, or signing on) is the process by which an individual gains access to a computer system by identifying and authenticating themselves. The user credentials are typically some form of username and a matching password,[1] and these credentials themselves are sometimes referred to as a login (or logon, sign-in, sign-on).[2][1] In practice, modern secure systems often require a second factor such as email or SMS confirmation for extra security. Social login allows a user to use existing user credentials from a social networking service to sign in to or create an account on a new website.