Facebook has begun supporting the OpenID login standard, which means users can register for the social networking service using another OpenID provider.
In February, Facebook finally joined the OpenID foundation, which provides a single user ID across the internet.
New users will be able to register for Facebook with their Gmail accounts, according to fan site AllFacebook.com.
Existing users can link their Facebook accounts with any OpenID provider to connect with friends and eliminate the need for multiple sign-ins.
Using an OpenID to access several online accounts that support the standard is much secure than using the same username and password for each account.
Online service providers warn against this way of getting around the problem of remembering multiple passwords because if one account is compromised, all are vulnerable.
Once users are logged in to their OpenID account, they will automatically be logged in to Facebook and all Facebook Connect sites they have registered for, making the login process much easier.
"This is awesome! Great news," said one posting on the AllFacebook.com site.