RARBG torrents bookmark feature, like it was on KickAss Torrents KAT.cr . You just need to add the movies to your own watchlist on the IMDb website and you will be automagically notified of new uploads at RARBG torrents.
You need to make your IMDb list public and call the script using the list name as parameter like:
php feedrarbg.php user/ur9028759/watchlist (i dont know whose it is, it is just a google feeling lucky result) or
php feedrarbg.php list/ls000031161 for created lists.