Animasi Blog Roll

var $ul = $('#blog-roll'),
    roll = function() {
        $ul.find('li').first().slideUp('slow', function() {
            $(this).appendTo($(this).parent()).fadeIn();
        });
    }, anim = setInterval(roll, 3000);

// Pause on hover...
$ul.hover(function() {
    clearInterval(anim);
}, function() {
    anim = setInterval(roll, 3000);
});

Demo