Nice app http://www.facebook.com/home.php#/note.php?note_id=102246207301&ref=nf
(see the abcnews example that i just clicked on in my profile - works well).
Turning Website Visitors into Facebook Fans with the Fan Box
Over 8 million users become fans of Facebook Pages every day to connect with their favorite public figures and organizations and get updates directly in their streams. Now, users can connect with brands, musicians, celebrities, businesses, and more, whether they're on or off Facebook.