Change the site logo URL on a Genesis site - XHTML (props to Bill Erickson)

Change site title URL (place in functions.php)

//* Change site title URL
function be_logo_url( $title, $inside, $wrap ) {
	$inside = sprintf( '<a href="%s" title="%s">%s</a>', esc_url( 'http://www.example.com' ), esc_attr( get_bloginfo( 'name' ) ), get_bloginfo( 'name' ) );
	$title = sprintf( '<%s id="title">%s</%s>', $wrap, $inside, $wrap );
	return $title;
}
add_filter( 'genesis_seo_title', 'be_logo_url', 10, 3 );