Mine

<?php
/*
Plugin Name: Title Grabber
Plugin URI: http://preow.com/plugins/title-grabber/
Description: Adds a title attribute to links that don't have one, grabs title's from the page the link goes to.
Author: Nick Dienstbier
Version: 1.3
Author URI: http://preow.com
*/

define('TG_SITE_URL', trailingslashit(get_settings('siteurl')));
define('TG_PATTERN_ANCHOR', "/<a[^>]*?href\s?=\s?[\"|'](.+?)[\"|'][^>]*>/i");

class TitleGrabber {

	var $site_host;
	var $pattern_anchor;
	var $wpdb;
	
    function TitleGrabber($site_host, $pattern_anchor, &$wpdb) { 
		$this->site_host = $site_host;
		$this->pattern_anchor = $pattern_anchor;
		$this->wpdb = & $wpdb;
		add_filter('publish_post', array(&$this, 'changeLinks'));
    }
    
	function changeLinks($id) {
		$text = $this->wpdb->get_var("SELECT post_content FROM {$this->wpdb->posts} WHERE ID = $id");
		$newText = addslashes(preg_replace_callback($this->pattern_anchor, array(&$this, 'changeLink'), stripslashes($text)));
		$this->wpdb->query("UPDATE {$this->wpdb->posts} SET post_content = '$newText' WHERE ID = $id");
		return $id;
	} 
    
	function grabTitle($url) {
		$filetypes = array(".zip", ".png", ".gif", ".jpg", ".rar", ".exe", ".txt", ".pdf", ".psd");
		if(strpos($url, $filetypes)) {
			return $url;
		}
		$pURL = parse_url($url);
		if (empty($pURL['host'])) {
			return $url;
		}
		if (empty($pURL['path'])) {
			$pURL['path'] = '/';
		}
		if (empty($pURL['query'])) {
			$document = $pURL['path'];
		} else {
			$document = $pURL['path'] . '?' . $pURL['query'];
		}
		$fp = fsockopen($pURL['host'], 80, $errno, $errstr, 8);
		if (!$fp) {
			return $url;
		} else {
			$out = "GET $document HTTP/1.1\r\n";	
			$out .= "Host: {$pURL['host']}\r\n";
			$out .= "Connection: Close\r\n\r\n";
			$received = '';
			fwrite($fp, $out);
			while (!feof($fp)) {
				$received .= fgets($fp, 128);
			}
			fclose($fp);
		}
		if (!preg_match('~<title>(.*)</title>~isu', $received, $matches)) {
			return $url;
		}
		return trim(strip_tags($matches[1]));
	}
   
	function changeLink($link) {
		if (!stristr($link[1], 'http')) {
			$link[1] = $this->site_host . $link[1];
		}
		return str_replace(">", ' title="' . $this->grabTitle($link[1]) . '">', $link[0]);   
	}
}

$title_grabber = & new TitleGrabber(TG_SITE_URL, TG_PATTERN_ANCHOR, $wpdb);

?>