Remember the Milk has just revealed support for Facebook powered sign-ins.

You can now connect your RTM account with your Facebook account.

And then you can log into the service using the Facebook Connect button.

Remember the Milk already allows similar capability using your Google Account.

The company said:

Once you’re all set up, signing in with Facebook is just one click from the Remember The Milk homepage — clicking “Sign in with Facebook” will immediately sign you into the web app (assuming you’re already logged into Facebook, of course).