Viewfinder Send to a Friend Script
This script is a simple drop-in PHP file that will allow you to add a Send to a Friend link to any page of your site (so it can be page specific if you wish).
It will allow someone to send the link to your page, with comments, their name and email address.
Installation instructions are in the recommend.php file in the download zip.
UPDATE: 28-05-2006
I have updated the script slightly to handle more complex URLs, but I haven't had much chance to test it, so I've kept the old version available for download too.