<? if (is_single()) {?>


<h2>Blogroll</h2>
          <ul><?php get_links(-1, '<li>', '</li>', ' - '); ?>


<?php } ?>

<?php
function myFilter($query) {
if ($query->is_feed || $query->is_home || $query->is_archive) {
$query->set('cat','-2');
}

return $query;
}

add_filter(’pre_get_posts’,'myFilter’);
?>