patio: great idea about avoiding spam bots.

We recently struggled with this on the design of the front page of an application. A similar issue we ran into is scaring people away with login/password boxes on the front page.

What does everyone think, is it better to have the login/password boxes visible immediately to save the user a click, or do what digg and twitter do to avoid scaring people about a sign-up form in the not so distant future and hide it behind some AJAX?