Wordpress: Add/Remove contact info fields

gistfile1

<?php
function new_contactmethods( $contactmethods ) {
    $contactmethods['twitter'] = 'Twitter'; // Add Twitter
    $contactmethods['facebook'] = 'Facebook'; // Add Facebook
    unset($contactmethods['yim']); // Remove YIM
    unset($contactmethods['aim']); // Remove AIM
    unset($contactmethods['jabber']); // Remove Jabber

    return $contactmethods;
}
add_filter('user_contactmethods','new_contactmethods',10,1);  
?>