Magento: Newsletter subscriber import script

add subscriber
<?php
$URL="http://www.panticz.de/sites/default/files/magento/newsletter/newsletter_import.php";
echo "

";
$c = curl_init();
curl_setopt($c, CURLOPT_URL, $URL);
echo htmlspecialchars(curl_exec($c));
curl_close($c);
echo "

";
?>

list all subscribers
<?php
$URL="http://www.panticz.de/sites/default/files/magento/newsletter/newsletter_list_all_subscriber.php";
echo "

";
$c = curl_init();
curl_setopt($c, CURLOPT_URL, $URL);
echo htmlspecialchars(curl_exec($c));
curl_close($c);
echo "

";
?>

files
./app/code/core/Mage/Adminhtml/Block/Newsletter/Subscriber/Grid.php
./app/design/frontend/base/default/template/newsletter/subscribe.phtml

Links
http://docs.magentocommerce.com/Mage_Newsletter/Mage_Newsletter_Model_Subscriber.html#setStatus
http://blogs.ifuelinteractive.com/2011/01/04/programmatically-subscribing-a-customer-to-the-newsletter-list/
http://www.magentocommerce.com/boards/viewthread/7626/
http://magento-wordpress.blogspot.de/2012/08/how-to-send-newsletter-manually.html